Hey
Tinkering with the same issue...
I think a faster way would be to get width & height, figure out every
nth pixel that you want depending on the resolution that you with to get
& then read only these bytes from arrays.
It wont smooth/resample pixels/etc but u can get quick rough thumbnail
this way I think?
Regards
Dariusz
On 28/06/2022 10:22, ████刮 wrote:
Hi. may i ask is there a fast way to generate thumbnail image?
i have many image with different resolution(from 1080P to 8K or 16K)
and different format(jpg, png, exr, psd...etc)
there is a existed thumbnail image in Psd format i can use. but for
another format i must generate by myself.
here is what i was tried:
load image with ImageBuf class. then use ImageBufAlgo::resize or
resample function to scale it to the target resolution(maybe 480x270).
then save the thumbnail image to Disk file.
it was worked.
i just interesting that is there a "better" or "faster" way to do
this? especially for large image.
Thanks!
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