I have an image of size 1000x1000(Grayscale). I want to start with a white canvas and plot the pixel value one by one on that canvas and create a video out of it. How can we achieve this?
I have instance of cvMat like cv::Mat sourceImage; Is it possible to convert this into Objective C Mat object like Mat *dst = [[Mat alloc] init];
I am working on an OpenCV project where I am taking input from iPhone native camera as CMSampleBuffer now I wanted to create Mat instance that is required in OpenCV for further process I have found some old post related…
I have an ios app that uses opencv and some other libraries. When running it, I see a log: (lldb) objc[536]: Class VideoWriter is implemented in both /System/Library/PrivateFrameworks/AutoLoop.framework/AutoLoop (0x1f897bd48) and /private/var/containers/Bundle/Application/6AF089E9-121C-41B4-8706-3F63E9F39090/Runner.app/Runner (0x1057a7888). One of the two will be used. Which…
def imgCrop(img, src): x = 0 y = 514 w = 1502 h = 1170 cv2.imwrite("test.png",img) crop_img = img[y:y+h, x:x+w] cv2.imwrite("img.png", crop_img) imgCrop(img, src) This is my code, I tried to crop an image then save it, runs well locally.…
I wanna create a docker image on windows and image base [in docker file] for docker image would be linux os. My program uses the open-cv program which its output image has to be shown with CV2.imshow(). but after running…
Ubuntu 20.04 LTS Python 3.8 ROS Noetic Desktop Full installed Confirmed I do have the file /lib/libgdal.so.26 Performed pip3 install opencv-python already Performed sudo apt install --reinstall gdal-bin libgdal-dev python3-gdal already Performed sudo apt-get install ros-noetic-cv-bridge already -- Result of…
With a uint8, 3-channel image and uint8 binary mask, I have done the following in opencv and python in order to change an object on a black background into an object on a transparent background: # Separate image into its…
I want to apply unsharp mask like Adobe Photoshop, I know this answer, but it's not as sharp as Photoshop. Photoshop has 3 parameters in Smart Sharpen dialog: Amount, Radius, Reduce Noise; I want to implement all of them. This…
I`m trying to import OpenCV to android studio project, but have inactive "next" and "finish" button. So i cant finish OpenCV importing. Using Android Studio Arctic Fox 2020.3.1 and tried different version of OpenCV(4.5.3, 3.4.1, 3.4.15 etc.) There are screenshots…