catdad-experiments / heic-decode Goto Github PK

What if there are multiple images in a heic file ?
For example https://dynamicwallpaper.club/wallpaper/brzq430bmso

Consider using fuller detection, like what is included in file-types

Hi @catdad
I'm using heic-convert in a nodejs docker container. when I start my command. docker-compose up. it shows me this error bellow

I'm using heic-convert version 1.2.3

Thanks

2.7M 4032x3024 HEIC file decode cost 4310.652ms

is it possible to render the decoded result in a browser canvas element?

I’m trying to figure this one out quite a while, maybe @catdad has an idea?

I’m using heic-convert to generate a buffer from a HEIC file and I have not managed to get a exact similar before/after image. The color contrast seems to be increased, resulting in some burnouts, and colors in general don’t match the original heic image (checked with Photoshop and other image programs, which can handle color profiles).

Since heic-convert uses heic-decode, I’ve tried a different setup with heic-decode and afterwards lovell/sharp with the same results.

This is an example of a HEIC file, left: original HEIC file with Display P3 color profile, right: after heic-decode also with Display P3 color profile (scaled down)

As you can see there are several differences, e.g. a more intense red in the bricks on the left side, more intense black floor and burnouts in the fur on the right side.

I’m trying to understand, which library is responsible for that. Is it a missing or wrong parameter in heic-decode or libheif-js or something fundamental in libheif itself? Are color profiles ignored somewhere on the way?

Thank you for your answer and great work!