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efficient way to compare 2 images?
#30
How fast are you needing your compares to be?  Somehow, it seems like everyone overlooked my working example here:  https://qb64phoenix.com/forum/showthread...1#pid10221

2000 full-screen compares of 720p HD images in 3 seconds.  That's 666 per second, or a comparison every 0.00something seconds.  

Since this isn't the type of routine which one needs to do repetitively, I'd think the little function I'd posted should be quick enough for most use cases.  Wink

If not, then you could probably save time with it considerably by writing a DECLARE LIBRARY routine and using memcmp directly, without having to copy the memory over into a set of temp strings to compare instead.  Wink
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Messages In This Thread
efficient way to compare 2 images? - by madscijr - 11-18-2022, 07:51 PM
RE: efficient way to compare 2 images? - by bplus - 11-18-2022, 08:10 PM
RE: efficient way to compare 2 images? - by Pete - 11-18-2022, 08:26 PM
RE: efficient way to compare 2 images? - by Pete - 11-18-2022, 08:55 PM
RE: efficient way to compare 2 images? - by Pete - 11-18-2022, 09:30 PM
RE: efficient way to compare 2 images? - by Pete - 11-18-2022, 09:52 PM
RE: efficient way to compare 2 images? - by Pete - 11-18-2022, 11:08 PM
RE: efficient way to compare 2 images? - by SMcNeill - 11-18-2022, 11:24 PM
RE: efficient way to compare 2 images? - by bplus - 11-18-2022, 11:40 PM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 12:22 AM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 01:22 AM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 05:39 PM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 06:28 PM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 10:54 PM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 11:54 PM
RE: efficient way to compare 2 images? - by bplus - 11-19-2022, 11:57 PM
RE: efficient way to compare 2 images? - by bplus - 11-20-2022, 12:02 AM
RE: efficient way to compare 2 images? - by bplus - 11-20-2022, 12:14 AM
RE: efficient way to compare 2 images? - by bplus - 11-20-2022, 12:36 AM
RE: efficient way to compare 2 images? - by bplus - 11-20-2022, 02:37 AM



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