Automatic white balancing with chromaticity measure of raw image data

A processor comprising an AWB module, the AWB module comprising logic circuitry to:

• receive color channel values of a raw image data block;
• normalize the color channel values with a white point correction factor;
• determine one or more first image chromaticity weight by quantifying a disparity among the normalized color channel values;
• and
• store to a memory the one or more first image chromaticity weight in association with the raw image data block.

A mobile device, comprising:

• a camera module to generate raw image data;
• a processor including an AWB module, wherein the AWB module is coupled to the camera module to receive the raw image data, and is to:
• generate raw image data blocks from the collected raw image data;
• receive color channel values of a raw image data block;
• normalize the color channel values with a white point correction factor;
• and
• determine one or more first image chromaticity weight by quantifying a disparity among the normalized color channel values;
• and
• a memory to store the one or more first image chromaticity weight in association with the raw image data block.

One or more computer-readable storage media, with instructions stored thereon, which when executed by a processor, cause the processor to perform a method comprising:

• receiving color channel values of a raw image data block;
• normalizing the color channel values with a white point correction factor;
• determining one or more first image chromaticity weight by quantifying a disparity among the normalized color channel values;
• and
• storing to a memory the one or more first image chromaticity weight in association with the raw image data block.