Legacy ImageMagick Discussions Archive

makes sense... thanks!

Hi folks, I was using convert in IM6 to create the edges with the convolve method successfully like that: convert file.jpg -bias 50% -morphology Convolve loG:0x2 edge.jpg Using now IM7 with the exact same command results in a totally white image: magick file.jpg -bias 50% -morphology Convolve loG ...

its not the strong lines, rather the dense point cloud. The cloud of the sharp image is present overall equally around the center. For the blurry image the cloud extremety bounds towards top-left and bottom-right.

Thanks for link. I tested against two similar images, one with slight motion blur and one acceptably sharp. By eye we can see that the magnitudes differ, that we can recognise a clear direction for the blurry image (2nd). For my project, I have thousands of images and dont want to look at every ...

Thanks Joa for your reply, its not too late

FFT looks very promising, could you provide a simple IM command line, to see how such a high frequency image could be created?

I think to check the high frequencies might be a more robust approach... not yet into it. but thats probably the way

After all, I go sleeping now...

Sorry, are the numbers clear for you?

I have written a small script in node to perform some tests over files based on the deviation method, you have provided earlier. Here test results for 3 images: DegStep: 15 maxDeg: 180 cropPerc: 100 blurry.jpg 0x1: [ '0.47640', '0.09185' ] blurry.jpg 0x3: [ '0.41651', '0.29287' ] blurry.jpg 0x6 ...

Now it works.

Hmm, Dropbox says I dont belonge there. Maybe you need to share these images?

Interesting approach.

I can't see the images. Could you upload them somewhere?

I should mention that this approach doesnt cover linear-motion-blur in the direction of the image forth or backwards. It only works when moving right,left,up or down.

The appraoch works geniously, very good Alan! I tested it, each 30deg. and it works out well as long as the motion blur is linear. Thats the deviation for a pretty sharp image: Orig: 0.219353 0: 0.21501 30: 0.212929 60: 0.210584 90: 0.210118 120: 0.210869 150: 0.212393 180: 0.214804 210: 0.213837 ...

Sure I can do. Here is are some sources, cropped and original, exr, tif8 and tif16 (toned): https://www.dropbox.com/sh/tnjkomqf7556vff/AAAf-SQkhd4QqCp_EYFF89ITa?dl=0 I think best would be test based on CRB_7983_tonemapped_crop.tif, 16bit tonemapped, 1000px. I will do some tests with IM and post them ...