Lossless Crop Speed (inexplicably slow)

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meteorquake
Posts: 107
Joined: Wed Sep 13, 2023 9:37 am

Lossless Crop Speed (inexplicably slow)

Post by meteorquake »

When I losslessly crop a jpeg, the jpegcrop.exe tool is very fast (though its interface is clunky). By contrast, xnview is unexpectedly slow, even on ideal boundaries, although I reckon it used to be much faster.
I wonder if there's any way to improve this as you feel the speed difference, or is there an insurmountable reason for this?
David
stew11
Posts: 2
Joined: Fri Apr 11, 2025 11:32 am

Re: Lossless Crop Speed (inexplicably slow)

Post by stew11 »

But XnView simply used to be faster! Version 1.9.5 crops almost instantly. From 1.9.6 it takes a while longer (noticeably)... Why? I ofen use this feature, so I downgraded to 1.9.5 for now.
meteorquake
Posts: 107
Joined: Wed Sep 13, 2023 9:37 am

Re: Lossless Crop Speed (inexplicably slow)

Post by meteorquake »

I'm glad it's not just me!
In fact, even a tiny JPG of a mere 30K in size takes a long time to crop (not much different from a 7 Mb one) so it's presumably not caused by inadvertently decoding the picture or something (I did check the crop was also lossless using 1200 x 1200 based on 0,0 and it does seem to be)
So it is a mystery...
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