algorithm - How does an unsharp mask work? - Stack Overflow
May 30, 2010 · I've been playing around with image processing lately, and I'd like to know how the unsharp mask algorithm works. I'm looking at the source code for Gimp and it's implementation, but …
opencv - Python unsharp mask - Stack Overflow
Sep 8, 2015 · I want to use unsharp mask on a 16 Bit Image. The Image has 640 x 480 Pixels and is saved in a NumPy array. I have done the following: blurred the image with a Gaussian filter (three …
How can I sharpen an image in OpenCV? - Stack Overflow
Jun 22, 2020 · How can I sharpen an image using OpenCV? There are many ways of smoothing or blurring but none that I could see of sharpening.
What is the difference between convert -unsharp and convert
Sep 10, 2020 · I understand that the the convert -unsharp from ImageMagick is using Unsharp Masking to sharpen the image. What kind of algorithm is behind convert -adaptive-sharpen? When I want to …
Unsharp mask implementation with OpenCV - Stack Overflow
Aug 9, 2021 · Here's my attempt at 'smart' unsharp masking. Result isn't very good, but I'm posting anyway. Wikipedia article on unsharp masking has details about smart sharpening. Several things I …
Remove video noise from video with ffmpeg without producing blur ...
Dec 17, 2022 · To help with blur, I always use unsharp to sharpen the image after nlmeans. Below are the parameters I find work best on old grainy movies, or 4K transfers of old movies that create …
How is the Laplacian used for Unsharp Mask? - Stack Overflow
Nov 25, 2011 · Matlab's fspecial unsharp mask uses a Laplacian kernel to achieve sharpening of the image. From what I know, the image needs to be blurred first, and then the blurred image is …
python - Image filtering with scikit-image? - Stack Overflow
Apr 25, 2014 · Does skimage include unsharp masking somewhere? (I've found an unsharp masking filter in PIL but that's a bit of a pain, as PIL uses its own Image class, rather than ndarrays).
Script fu 'unbound variable' error on arguments - Stack Overflow
Got the original script working in gimp 2.8 ubuntu 14.04lts Just had to copy and paste the line breaks back together. I am having trouble pasting this in so the lines are not broken, just remove the blank …
FFmpeg batchfile to compress images JPG JPEGs and keep EXIF …
Jan 22, 2022 · I tried searching everywhere for a possible solution but I really can't find it. Hope someone can help me out here. I have written a batch file to use FFmpeg to compress and sharpen …