Add HDR support - Githubissues

sylikc / jpegview

Fork of JPEGView by David Kleiner - fast and highly configurable viewer/editor for JPEG, BMP, PNG, WEBP, TGA, GIF and TIFF images with a minimal GUI. Basic on-the-fly image processing is provided - allowing adjusting typical parameters as sharpness, color balance, rotation, perspective, contrast and local under-/overexposure.

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Add HDR support #239

Open wiketor opened 1 year ago

wiketor commented 1 year ago

like support for *.jxr files. Now when I open a HDR file, it will be too dark or too bright.

sylikc commented 12 months ago

Can you give an example of an HDR file? In which file format?

wiketor commented 11 months ago

Can you give an example of an HDR file? In which file format?

Compare I upload a comparison picture. It comes from the HDR screenshot that comes with Windows. You can use the Win + Alt + PrtSc keys to get pictures in HDR mode, and that will get a JXR file.

o-l-a-v commented 11 months ago

One more sample image, JPEG XL. It looks dark and dull on my Windows 11 system that doesn't support HDR.

Where I found it: https://people.csail.mit.edu/ericchan/hdr/hdr-jxl.php
Image in question: https://people.csail.mit.edu/ericchan/hdr/jxl_images/20140606_102418_IMGP0297.jxl

Screenshot showing Thorium browser vs. JPEGView v1.2.45.0:

For comparison, following programs seems to display this sample image correctly:

GIMP v2.10.34
PhotoQt v3.4
Thorium Browser (thorium-win-avx2) v117.0.5938.157

johncf commented 5 months ago

Here is another one in AVIF format: https://raw.githubusercontent.com/AOMediaCodec/av1-avif/master/testFiles/Netflix/avif/hdr_cosmos01650_cicp9-16-9_yuv420_limited_qp10.avif

On SDR displays, it should look like this: https://raw.githubusercontent.com/AOMediaCodec/av1-avif/master/testFiles/Netflix/avif/sdr_cosmos01650_cicp1-13-6_yuv420_limited_qp10.avif

Source: reddit

I verified that the latest version of Chrome handles both images correctly (with my Display's HDR on and off).