Table 9–6. Supported JPEG XR features Color space Pixel Compression formats Grayscale BlackWhite 8-bit integer 16-bit integer Lossy or None – – 16-bit Lossless half-float* 16-bit point* 32-bit point* sRGB 8-bit Lossy 1-channel integer or or – – – – 16-bit Lossless 1-channel pre-multiplied integer scRGB 16-bit half-float 16-bit 1-channel fixed point – or – Lossy 32-bit 1-channel pre-multiplied or – – IEEE float Lossless RGBE-Radiance (no alpha 32-bit channel) point CMYK 8-bit Lossy integer or 1-channel independent – – 16-bit Lossless integer N-channel (including 8-bit Lossy named color N-tone) integer or 1-channel independent – – 16-bit Lossless integer Profiled RGB 8-bit Lossy 1-channel integer or or – – – – 16-bit Lossless 1-channel pre-multiplied integer * The value range of these formats is the same as scRGB. If no color profile is embedded in the JPEG XR image or stored in a separate part associated with the JPEG XR image according to the mechanisms described in §15.3.7, then the default color space MUST be treated as defined in §15.3.7 [M8.30].
Table 9–6. Supported JPEG XR features Color space Pixel formats Compression Grayscale BlackWhite 8-bit integer 16-bit integer 16-bit half-float* 16-bit point* 32-bit point* Lossy – or – Lossless None sRGB 8-bit integer 16-bit integer Lossy – or – Lossless 1-channel – or – 1-channel pre-multiplied scRGB 16-bit half-float 16-bit fixed point 32-bit IEEE float 32-bit point Lossy – or – Lossless 1-channel – or – 1-channel pre-multiplied RGBE-Radiance (no alpha channel) CMYK 8-bit integer 16-bit integer Lossy – or – Lossless 1-channel independent N-channel (including named color N-tone) 8-bit integer 16-bit integer Lossy – or – Lossless 1-channel independent Profiled RGB 8-bit integer 16-bit integer Lossy – or – Lossless 1-channel – or – 1-channel pre-multiplied * The value range of these formats is the same as scRGB. If no color profile is embedded in the JPEG XR image or stored in a separate part associated with the JPEG XR image according to the mechanisms described in §15.3.7, then the default color space MUST be treated as defined in §15.3.7 [M8.30].