Aperture: Unexpected results when working with grayscale or other non-RGB images

Products Affected

Aperture 2.x, Aperture 3.x

Symptoms

Adjustments on grayscale images sometimes give unexpected results, or do not work at all.

Resolution

Aperture is designed to work with images from digital cameras which use an RGB color space. Non RGB images, such as grayscale TIFFs, grayscale PNGs, or RGB-A images (with alpha transparency) may not render correctly.

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