Resize an image using opencv. Load the desired image using the cv2. CAP_PROP_FRAME_HEIGHT of the frame. Resizing in OpenCV is referred to as scaling. resize. quantum_range) img. See if you can get images from this camera in this size with other programs. so far now I am able to resize an image by Apr 10, 2019 · DICOM is not supported in OpenCV, see here. add 100 zero pixels to each row border) to make the image 2400*2700. @brief Resizes an image. In this tutorial, you will learn how to scale an image to a specific percentage, with examples. Resize an Image. Here’s a basic code example that shows how resize() works: Aug 17, 2017 · When you show the resized image with imshow() it shows the image on-screen and change showing window size according to an image pixel. shape (40, 40) I would like the final output of x. Conclusion. Image resizing with a custom Width and Height. imshow() is used to display an image in a window. Now my I want to resize all of those pictures using for loop in cv2. png. fx: The scaling factor along the x-axis. Resize an Image with cv2. 0+. img_grayscale = cv2. Then extract the height and width of the Dec 28, 2018 · So, i got from my university a python related task. Theory Note The explanation below belongs to the book Learning OpenCV by Bradski and Kaehler. Importing library import cv2 Importing image data image = cv2. initial dst type or size are not taken into account. Now that you have read the image, let’s resize it. In this article, I will be using a Google doodle of my favourite high-life musician (Oliver de Coque) to demonstrate image resizing with OpenCV. In this chapter, we will learn how to resize and rotate an image with the help of OpenCVPython. Different interpolation methods are used. Python OpenCV – Scale Image. Jul 24, 2019 · Now to resize images, we will make a new output folder, read images from input folder one by one using a for loop, resize the images, save them in the output folder and display resized images one Jan 8, 2013 · Use the OpenCV function copyMakeBorder() to set the borders (extra padding to your image). Applies a Rotation to the image after being transformed. One solution is to clip the results to [0, 255]. In our previous tutorial we learned to use convolution to operate on images. This transform is obtained from the relation between three points. Dec 16, 2016 · Assume that you're resizing by a factor of 2 in both dimensions. Summary. Mar 19, 2023 · What is Scaling an Image? Scaling an image essentially means manipulating these pixels to create either a larger or a smaller version of the original image. Let's see how can we do this. import static org. imread function. Code : import cv2 file = "/home/ Feb 28, 2024 · 💡 Problem Formulation: Resizing images is a common preprocessing step in many computer vision applications. Resize an Image Using Core Java Jan 8, 2013 · Loads an image; Applies an Affine Transform to the image. You know the real value only for 1/4 of the pixels. We give Image name parameter with extension when we will run python script #Read the image. WINDOW_NORMAL) # Create window with freedom of dimensions im = cv2. Resize Image using cv2. Increase width/height of image(not resize) Jan 25, 2018 · (taking for example the vertical case), I compute the height of an image with the same aspect ratio as the target image, but with width equal to the input image using the formula (IMG_COL/IMG_ROW)*img. October 4, 2022 (April 2, 2023) OpenCV 0 Comments 901 Views; Image resizing reduces the number of pixels in an image. Left – ESPCN_x3 result image, Right Jul 20, 2014 · I want to display an image using opencv on Mac os X 13'. To scale an image with OpenCV in Python, you can use cv2. If you haven't installed it yet, you can do so using pip: pip install opencv-python Resizing an Image with OpenCV. And for instance use: import cv2 import numpy as np img = cv2. In this OpenCV tutorial, we learn the syntax of cv2. INTER_CUBIC) Jan 21, 2024 · Resizing an Image. resize() function to fit the image to your screen. The first Command line argument is the image image = cv2. Mar 6, 2019 · You can run through all the images inside the directory using glob. argv[1]) #The function to read from an image into OpenCv is imread() #imshow() is the function that displays the image on the screen. resize() and return the resized image. The function resize resizes the image src down to or up to the specified size. This function requires two arguments: the image you want to resize and the new dimensions. 4*img. The cv2. It is possible to scale up or down an image with the use of cv2. resize(img, dsize=(54, 140), interpolation=cv2. tiff or . resize() explained here. INTER_CUBIC, I may get values outside this range. Image resizing with different Interpolation methods. The aspect ratio is preserved when we specify the scaling factor. Feb 17, 2015 · Is there a way of resizing images of any shape or size to say [500x500] but have the image's aspect ratio be maintained, levaing the empty space be filled with white/black filler? So say the image Mar 22, 2021 · Left – Original Image, Middle – ESPCN_x3 Upscaled Image, Right – Image upscaled using OpenCV’s resize function. imgproc. Note that the . This rotation is with respect to the image center; Waits until the user exits the program Jul 30, 2020 · A very good text deskew tool can be found in Python Wand, which uses ImageMagick. Jan 26, 2015 · Figure 7: Multi-scale template matching using cv2. This library, written in C++ and with interfaces for Python, is designed for computational efficiency and real-time applications. This function requires you to build a transformation matrix. resize(src, dsize, fx, fy, interpolation) Where: src is the source of the Jun 10, 2021 · To use this type of interpolation to resize an image in openCV we use the resize function with the cv2. shape[1]. There is no specific function for cropping using OpenCV, NumPy array slicing is what […] Jan 11, 2011 · I'm passing an array of images (IplImage**) to an object in C++ using OpenCV. Then you have to combine these images together to form one large image then the window dimensions etc will be taken care of. warpAffine. In this article, we have covered the basics of loading and displaying images using OpenCV. Instead, the size and type are derived from the src,dsize,fx, and fy. g. quantum Mar 19, 2023 · In this example, we are resizing the loaded image to a new width and height using “resize”. display import display with Image(filename='form1. resize() for image scaling. You can use it to resize the image: IplImage* resizing (IplImage *source) {IplImage *destination = cvCreateImage ( cvSize(Your favourite width , Your favourite height ), source->depth, source>nChannels ); cvResize(source, destination); return destination; } Nov 9, 2019 · I was doing similar things today, and had the same results on my Jetson NX running in the NVP model 2 mode (15W, 6 core). Several methods are available in OpenCV, the choice typically depends on the particular application. Another is to use a different interpolation method. Resizing Images with OpenCV. Additionally, I’ll also show you how to rotate an image using my two convenience functions from the imutils library, imutils. Jul 28, 2024 · What Is Python Image-Resize? Python is a popular object-oriented programming language for image-related tasks for webpages, visualizations, or when using Python for machine-learning operations through frameworks like OpenCV and Scikit Learn. resize(im, (960, 540)) # Resize image cv2. resize() function takes the following arguments: src: The input image. I need to resize an IplImage and convert it into a CvMat of different depth, this is the code I've written so far: void cvResize2(IplImage *imgSrc, IplImage *imgDst) { IplImage *imgTemp; i Jan 4, 2020 · For example if the original image has this size: 2400 * 2600, you should pad the columns with 100 pixels (e. GaussianBlur(img, (15,15), 0) Oct 3, 2017 · Sys will be used for reading from the command line. I'm then trying to iterate over that array and resize them all to a fixed size (150x150) I'm doing it this way: for(i I have a numpy array that I wish to resize using opencv. When dealing with images in OpenCV using Python, you might have a high-resolution image and you need to scale it down or up for various reasons such as reducing the computational cost or fitting a particular display size. Th Apr 3, 2024 · Let’s start with the simple task of reading an image using OpenCV. How to increase size of an image while saving it in opencv python. When I run this code, I see just a part of an image. but unfortenally i was unable to find the best way to do it with the openCV module. resize() function in OpenCV to resize and scale images. Syntax – cv2. If you don't care about the aspect ratio, you can follow the previous tutorial. Share Improve this answer Apr 29, 2022 · Using OpenCV. Mar 6, 2017 · I want to resize my image the code below works when the image is an IplImage but when i change it into Mat i get these errors: -Cannot convert 'cv::Mat::depth' from type 'int (cv::Mat::)() const' t Oct 23, 2012 · Here is a method that returns the image dimensions: from PIL import Image import os def get_image_dimensions(imagefile): """ Helper function that returns the image dimentions :param: imagefile str (path to image) :return dict (of the form: {width:<int>, height=<int>, size_bytes=<size_bytes>) """ # Inline import for PIL because it is not a common library with Image. resize(src, dsize, dst, fx, fy, interpolation) Dec 15, 2016 · Is there an efficient way to resize an image in OpenCV without using any interpolation? Instead of the conventional "resize" I would like my image to remap the pixels into a larger image but pad Read, Display and Write an Image using OpenCV; Reading and Writing Videos using OpenCV; Image Resizing with OpenCV; Cropping an Image using OpenCV; Image Rotation and Translation Using OpenCV; Annotating Images Using OpenCV; Color spaces in OpenCV (C++ / Python) Image Filtering Using Convolution in OpenCV; Image Thresholding in OpenCV Apr 19, 2020 · here is a similiar question. Let’s, start with what is OpenCV. INTER_LINEAR for zooming. matchTemplate. OpenCV provides a function called resize to achieve image scaling. Two way to scale an image Sep 2, 2019 · This will resize the image to have 605 cols (width) and 700 rows (height): imgR = cv2. 1. To resize images with OpenCV, use the cv2. INTER_LINEAR interpolation flag. imgcodecs. 4. resize(image, (0,0), fx=0. resize to resize an image while maintaining aspect ratio. imread() is used to read an image. You can adjust based on desired width or height to upscale or downscale. I want resize to rectangle area by 5x1 using opencv Come, see for yourself, how Cropping an Image using OpenCV works. Hope this helps. If I opt to use cv2. but, apparently we can do it a lot faster using the GPU. Imgproc. Dec 9, 2019 · You can try using imutils. e. 5) and this will resize the image to have 100 cols (width) and 50 rows (height): resized_image = cv2. destroyAllWindows() simply destroys all the For putting a specific point in the input image at a specific point in the output image, with a precise scale factor, you would want to use cv. resize(). The resize() function is used as follows −. The window automatically fits to the image size. resize(overlay_t, (fsize, fsize)) def overlay_transparent(background_img, img_to_overlay_t, x, y, overlay_size=None): """ @brief Overlays a transparant PNG onto another image Dec 6, 2017 · Once you have read the images, you can resize them using cv2. Image scaling is a process used to resize a digital image. Mar 25, 2024 · Let’s take a look at two coding examples that demonstrate increasing and decreasing the size of an image using OpenCV. Feb 3, 2016 · Although I was expecting an automatic solution (fitting to the screen automatically), resizing solves the problem as well. imread('your_image. Is it possible to reduce the resolution of an image without damaging the contents? If yes, how to reduce it in OpenCV implementation? Any help would be greatly appreciated. We will resize the image to 50% of its actual shape, i. Reverted image Resize images using openCV in python. This function takes an image and resizes it to the specified dimensions. imread(img) resized_img = cv2. In the resize method, you can either specify the values of x and y axis or the number of rows and columns which tells the size of the image. Jan 3, 2023 · We know OpenCV is widely used to operate on images and has a wide spectrum of functions to do so. 5) to half each dimention of the image. We perform two things in the image scaling either we enlarge the image or we shrink the image, OpenCV has a built-in function cv2. Let's find out which data image is more similar to the test image using python and OpenCV library in Python. ndarray format and outputs an image also in numpy. Jun 25, 2021 · So one more basic and one of the most important operations one needs to perform while playing with images in OpenCV is resizing. Code # Resize the image resized_image = cv2. import glob import cv2 import numpy as np IMG_DIR='home/xx/imgs' def read_images(directory): for img in glob. The key function we'll use is cv2. rotate(frame,rotateCode = 1) and rescale or resizing by using cv2. It’s important to mention that we can scale images both up and down. img = cv2. resize() function to upscale, downscale, or resize to a desired size (considering or not considering the aspect ratio). Then you can resize the result image to 800*900 (with 1/3 scale factor) without any change in the shapes of the image. 5, fy=0. In this very short blog, we will see that how we can resize an image in two ways using the resize function of the cv2 library. Jan 20, 2014 · OpenCV and Python versions: This example will run on Python 2. To resize an image in Python, resize() function of the OpenCV library is used. fy: The scaling factor along the y-axis. Apr 7, 2020 · Mouseover on resize in VSCode shows. 0 , (250 , 250)) yield resized_img resized_imgs = np May 16, 2020 · Extract the dimensions from the string and use the cv. 0. The syntax of the cv2. Dec 31, 2019 · so what about resizing the image? there is a function in OpenCV which it's name is cv2. You need to guess the value of the remaining ones. For this introduction to basic image processing, I’m going to assume that you have basic knowledge of how to create and execute Python scripts. However, resize() requires that you put in either the destination size (in both dimensions) or the scaling (in both dimensions), so you can't just put one or the other in for 1000 and let it calculate the other for you. resize(img, (640, 640)) to set the resolution to 640x640, or. png',-1) # -1 loads with transparency overlay_t = cv2. open(imagefile) as img Aug 22, 2023 · I want to resize png picture 476x402 to 439x371, and I used resize method of PIL(image) or opencv, however, it will loss some sharp. cols * 0. save(filename='form1_deskew. I tried using cv2. Red rectangle size is 30x5. Downscaled image to 100x100. Preferable interpolation methods are cv. You can choose another image. In OpenCV, we can do this using the resize() function. Jan 3, 2023 · This tutorial will show you exactly how to resize an image using OpenCV and Python Or better use c++ interface (eg cv::Mat instead of IplImage and cv::imread instead of cvLoadImage) and then use cv::resize which handles memory allocation and deallocation itself. imread() – Read Image using OpenCV Python. You can use resize() in OpenCV to resize the image up/down to the size you need. You can use cv::resize() in the following way: Scaling is just resizing of the image. following is my code but the output is not correct-- impo May 12, 2018 · I am new to python and computer vision programming. Knowing this is important when you’re doing stuff with images like making them bigger or smaller, cropping, scaling, or applying various transformations. From there, open a terminal, and execute the following command: $ python load_image_opencv. png') overlay_t = cv2. Note that the initial dst type or size are not taken into account. Click Try it button to see the result. We can resize an image by specifying the image size or scaling factor. 7 and OpenCV 2. INTER_LINEAR) Saving the Resized Image Image Resize Example <canvas> elements named canvasInput and canvasOutput have been prepared. Feb 14, 2024 · Resize an Image Using resize() Method of OpenCV Module in Python OpenCV (Open Source Computer Vision Library) is a highly regarded tool in this domain. If you want worse quality, you can use a blur (I would recommend Gaussian): img = cv2. Its values range from 0 to 255. OpenCV or Open Source Computer Vision Library is an open-source and free to use library under the Apache 2. resize() for this purpose. rotate_bound, which make rotating images with OpenCV easier (and requires less code). The size of the image can be specified manually, or you can specify the scaling factor. With OpenCV installed, you're ready to resize an image. resize(img, (0,0), fx = 0. ndarray format with your desired height and Jan 20, 2021 · Now it’s time to load images from the disk using OpenCV! Start by accessing the “Downloads” section of this tutorial to retrieve the source code and example images. deskew(0. cv2. , we will reduce its height to 50% of its original and width to 50% of its original. May 28, 2017 · If you wish to use CV2, you need to use the resize function. # import the cv2 library import cv2 # The function cv2. jpg') res = cv2. jpg',0) # The function cv2. Oct 20, 2012 · You can resize using opencv: img = cv2. 7. X/OpenCV 3. when you open the image with image viewer it open image in fixed window size and window size don't depend on image pixel . opencv. This is undesirable, since the resized array is supposed to still represent an image. glob(directory+"/*. That is easy. Feb 7, 2023 · This tutorial will show you how to resize an image while preserving the aspect ratio in OpenCV (cv2) and Pillow (PIL), also, how to scale it by a scale ratio and resize it by a max height and width. First, why do we need to crop? Cropping is done to remove all unwanted objects or areas from an image. waitKey(0) # cv2. Jul 5, 2019 · The resize could be up or down as in I could scale to 5% the size of the original image or 500% (or any other value these are given as example) This is what i tried and i'd need absolute minimal changes in the resized image since i'll be using it in comparison with other images Resizes an image. If you want to resize src so that it fits the pre-created dst, you may call the function as follows: Jul 29, 2014 · So, if you are trying to change the size of your input images while loading a movie you have to use cv::resize(). def resize(src, dsize, dst=None, fx=None, fy=None, interpolation=None) resize(src, dsize[, dst[, fx[, fy[, interpolation]]]]) -> dst . imread(infilename,-1) returns a numpy array: Jan 3, 2014 · If you want to scale an image using OpenCV java then do the following: . CAP_PROP_FRAME_WIDTH and cv2. Input Image Examples 1. Once again, our multi-scale approach was able to successfully find the template in the input image! And what’s even more impressive is that there is a very large amount of noise in the MW3 game cover above — the artists of the cover used white space to form the upper-right corner of the “Y” and the lower-left corner of Jan 26, 2024 · Resizing images using OpenCV is quite simple and easy. shape to be (40, 40, 3). We must specify the original image, target dimensions, and interpolation method as input parameters. Resize Oct 4, 2022 · Resize Image using OpenCV. In this article, we explored how to resize images using OpenCV in Python, both with and without maintaining the aspect ratio. Imgcodecs May 7, 2024 · We know OpenCV is widely used to operate on images and has a wide spectrum of functions to do so. INTER_CUBIC (slow) & cv. resize() function is: cv2. For the implementation, we need to install the OpenCV library using the following command: pip install opencv-python Reading an Image First of all, we will import cv2 module and then read the input image using cv2’s imread() method. 0 license. I need to fit the image to the screen. But these solutions require extensive setup and maintenance in line with the changing business needs. resize(ImageCV[Image], (605, 700)) For more options you can read the documentation for cv2. for this purpose I am using python3. 75), 0, 0, CV_INTER_LINEAR); The 4th and 5th argument should be left 0 or not assigned to take 3rd argument as size otherwise it will scale according to 4th and 5th arguments. Thankyou Image editing has become more and more popular these days as mobile phones have this built-in capability that lets you crop, rotate, and do more with your images. If you know the rectangle vertex coordinates. jpg') (Pdb) x. 5, fy = 0. resize function. Feb 15, 2023 · You can use the cv2. Mar 25, 2017 · So, I have an image from a digital scanner, its resolution is 26 Megapixel. resize() Jul 5, 2023 · Resize an Image. Jul 17, 2015 · This is original image. png width: 720 pixels height: 764 pixels channels: 3 Jan 8, 2024 · We’ll explore both core Java and open-source third-party libraries that offer the image resize feature. Jan 3, 2023 · Prerequisites: Python OpenCVSuppose we have two data images and a test image. Here is a function using Pillow and Opencv which takes an image in numpy. 75,inImg. If you feel like the final image is too big, you can either resize the individual frames or the final huge image. Apr 8, 2024 · Finally, we resize the image using cv2. x and opencv2. For example, this will resize both axes by half: small = cv2. To resize the image, we can use OpenCV’s `resize` function. imread('football_stadium. though I am trying to make an image resizing tool. resize() and how to use this function to resize a given image. It is based upon the Radon transform. Resizing an image with a Scaling factor. Python Program Jun 1, 2014 · cv::resize(inImg, outImg, cv::Size(inImg. Reducing the size of an image. resize(image, (new_width, new_height), interpolation=cv2. Or even to highlight a particular feature of an image. The following code reduces the size of an image using a scaling factor of 0. Aug 9, 2024 · How to resize images using OpenCV? To resize an image using OpenCV, you use the cv2. Th Jun 5, 2021 · It is generally done by adjusting the pixel value of the image by using various methods. This function creates a window that can display an image. imshow("output", imS) # Show image cv2. Feb 12, 2024 · You can read more about image processing tutorials from OpenCV. rotate and imutils. This is called interpolation. waitKey(0) # Display the image infinitely Jun 18, 2022 · Image from Google. If you already know your screen resolution, an alternative solution would be to add a simple if statement, if the dimensions of your images exceed your monitor's dimensions, you can resize them to your current dimensions. jpg') Converting to gray Dec 7, 2022 · Image Scaling . Import the same libraries as given under the nearest neighbour interpolation method above, read the image using cv2 and then resize with the cv2. resize by that you can resize image to any size, I reshape your image to (100,200) in the below line and re-run the code: image = cv2. imread('image. To use OpenCV in Python install the following libraries: NumPy; OpenCV; To install the above given libraries, use the following command. resize() In the following example, we are going to see how we can resize the above image using cv2. resize(image,(100,200)) And the result will be: The whole code will be like the below: Jan 8, 2021 · I have read a folder containing pictures using glob and imread. But what if we want to process the image files without using any external library like OpenCV. For example, original image size is 1280x720. png') as img: img. It’s about how many tiny dots called pixels make up the image, both in width and height. We use the function cv::warpAffine for that purpose. resize() Function. resize funcion, but it always returns a single channel image: (Pdb) x = cv2. rows * 0. r Yeah, you can install opencv (this is a library used for image processing, and computer vision), and use the cv2. We can use cv2. Reading an Image using OpenCV imread () function. In the code samples in this tutorial, we’ll resize images to smaller sizes since, in practice, that’s the most common scenario. imread('test. Let's first load the image and find out the histogram of images. resize() while preserving the aspect ratio. 5 across both axes. Using ImageKit to resize and crop images. . jpg or png) before you are able to resize them with OpenCV: May 10, 2017 · This is the easiest way to rotate image frames by using cv2. png"): image = cv2. *; import static org. You can try to call it after resize. It takes the original image, modifies it, and returns a new image. dsize: The size of the output image, specified as a tuple (width, height). Also when saving the image, you should use a lossless image format such as . import cv2 cv2. namedWindow("output", cv2. And then resize the images with opencv as follows or as you have done with PIL. I am trying to resize an image using the resize function provided but after resizing the image is very distorted. OpenCV comes with a function cv. we need to get s a set of images (from a folder), and then resize them as fast as possible. imread('football_3. Aug 12, 2024 · How Do We Display an Image in Python Using OpenCV? To display an image in Python using OpenCV, you use the cv2. shape (50, 50, 3) (Pdb) x = cv2. Here's a quick example: Input image with shape 250x250. There are different interpolation methods used in cv2. png') display(img) with Image(filename='form2. To resize an image, you can use the resize() method of openCV. resize(image/255. imread(sys. resize(image, (100, 50)) Another option is to use scipy module, by using: Jun 20, 2017 · I am using python 3 and latest version of openCV. imshow() function. If you are loading a camera input, it might be that this resolution is not supported by the camera. INTER_AREA for shrinking and cv. Image Scaling (Using Nearest Neighbour Interpolation): Nearest Neighbour interpolation is the simplest way of interpolation. You will have to convert all of your images into a suitable format (e. jpg") # Read image imS = cv2. After resize, The picture becomes blurred. so i manage to do it using cv2 resize option. imread("earth. resize(x, (40, 40)) (Pdb) x. When it comes to resizing an image for inference, we’re basically having the following choices: resizing happens on a capture device using a FPGA; resizing an image using a CPU (using an interpolation algorithm) resizing an image using memory views/pointers on Mar 28, 2020 · Path: The image should be in the working directory or a full path of image should be given. py --image 30th_birthday. image import Image from wand. Also, I would suggest using python coding conventions like imgR -> img_r, Image -> image, ImageCV -> image_cv etc. I want to resize an RGB image using Python 2. imshow('graycsale image',img_grayscale) # waitKey() waits for a key press to close the window and 0 specifies indefinite loop cv2. In this blog post, we will explore image translation and image rotation using OpenCV. pip3 install opencv-python pip3 install numpy. Based on the requirement, the aspect ratio of an image can be preserved. 2. Using the CPU to resize an image 10,000 times was faster than resizing the same image 10,000 times with the GPU. Sep 27, 2022 · How to resize an image in OpenCV using Python - OpenCV provides the function cv2. The first argument is the image array we want to resize, and the second argument is a tuple containing the new width and height of the image. Are you sure that you are providing that right path to the imgread() method? Try giving it a full absolute path, e. I then subtract the actual height of the image to determine how large the borders need to be. The image size is 1920 × 1080. We Dec 1, 2016 · import numpy as np import cv2 fsize = 600 img = cv2. Finally cv2. resize() function. One problem that naturally arises is how to handle the boundaries. I want to reduce the resolution of the image to 5 Megapixel. Apr 20, 2021 · This could be done using a form of OpenCV CUDA integration or on a lower level. You can change the code in the <textarea> to investigate more. Basic Image Transforming Operations Image translation and rotation are among the most basic […] Jan 20, 2021 · In this tutorial, you will learn how to rotate an image using OpenCV. Look like opencv resize method doesn't work with type int32. Syntax to resize image in OpenCV. Both Pillow and OpenCV are good options to resize and crop images. . resize() to resize an image. resize(src, dsize, dst, fx, fy, interpolation) Jan 8, 2013 · Scaling is just resizing of the image. Form 1: Form 2: from wand. Apr 26, 2024 · Image size in OpenCV means how big or small an image is. Conclusion: Resizing images is a fundamental operation in image processing tasks, and OpenCV simplifies this task with its resize() function. Mar 24, 2018 · I believe there are two issues: You should swap x_ and y_ because shape[0] is actually y-dimension and shape[1] is the x-dimension; You should use the same coordinates on the original and scaled image. Resizing, by default, only changes the width and the height of the image. pmtzmpptlfdbmyvctqwxfspkveqzvgmwgtvyqxfhvgckufqnxcnyxdoq