Hi there,
I'm running into the alpha channel issue. I want to read an image as
unassociated alpha. So I used following code:
ImageSpec config;
config.attribute("oiio:UnassociatedAlpha", 1);
ImageInput *image_in = ImageInput::open(filename, );
image_in->read_image(...);
But I noticed that some
What the attribute means is: If the image file has unassociated alpha, KEEP it
unassociated (preserving the original data values from the file), rather than
the usual practice of converting to associated alpha, as is the normal OIIO
convention.
It does not convert an associated alpha file
Thank you for the answer. I understand the attribute means and OIIO design.
For PSD, I think there is a bug the last layer's ImageSpec only has
oiio::UnassociatedAlpha attribute. All layer's ImageSpec should have the
attribute.
For SGI, we need to process as unassociated alpha because of the
