Utility for GPU based image blurring

[jbo@]

I'm using graphics/ImageMagick7 to blur an image in a shell script. This is a pretty slow process (it's CPU only and inherently slow that way).

Are there any utilities available that can be utilized to blur an image using GPU acceleration?

As for ImageMagick: For most use cases, the recommendation is to use -blur instead of -gaussian-blur (which I do) and for large images to scale them down and back up again. However, this is not an option in my particular situation.
I'd like to know whether there are other off-the-shelf solutions I can employ or whether I have to roll my own (which I'd rather not).

 

[Alexander88207]

Your application seems to have some features accelerated (including blur) through OpenCL.

But i dont know if OpenCL is being used here.

ImageMagick – Parallel Execution with OpenCL

ImageMagick is a powerful, open-source software suite for creating, editing, converting, and manipulating images in over 200 formats. Ideal for web developers, graphic designers, and researchers, it offers versatile tools for image processing, including batch processing, format conversion, and...

imagemagick.org

 

[sidetone]

I found out about graphics/gd a while ago as an alternative to ImageMagick. It's a library, but if I remember correctly, it's used directly with php (maybe python, shell or other script) commands to edit images. I've never used it, but there are examples of it for editing images.

graphics/gd Graphics library for fast creation of images
gd is a graphics library. It allows your code to quickly draw images
complete with lines, arcs, text, multiple colors, cut and paste from
other images, and flood fills, and write out the result as a PNG, GIF
or JPEG file. This is particularly useful in World Wide Web applications,
where PNG, GIF and JPEG are three of the formats accepted for inline
images by most browsers.

gd does not provide for every possible desirable graphics operation,
but version 2.0 does include most frequently requested features,
including both truecolor and palette images, resampling (smooth
resizing of truecolor images) and so forth.

WWW: https://libgd.github.io/

For ImageMagick, using the -nox11 package or port option may make it a little faster, as it will have less dependencies. A shell script doesn't need the x11 part.