2 Commits

Author	SHA1	Message	Date
christian-byrne	76cc69a2af	Split the alpha off by image layout, not by model channel count ... Keying the split off upscale_model.input_channels was wrong for any model that does not take 3 channels: a single channel model fed a plain RGB image took only the red channel and returned 1 - green as the alpha mask, where it used to fail loudly. Alpha is channel 3 of an RGBA image, nothing else.	2026-08-10 13:56:57 -07:00
christian-byrne	1e881c08ea	Add an alpha mask output to ImageUpscaleWithModel ... Upscale models take input_channels channels, so an RGBA image was handed straight to a 3 channel model and failed. Split the alpha off, upscale it to match the result and return it as a MASK using the LoadImage polarity.	2026-08-10 13:56:57 -07:00