Circuit for correcting chromatic abberation through sharpening

A method comprising:

• receiving a sharpening value for each pixel value from pixel values of pixels of a color in a raw input image data;
• generating a clamped value for each of the received pixel values as a function of the sharpening value for the corresponding pixel value, the clamped value limiting a degree of sharpening applied to each pixel value;
• generating for each received pixel value a corresponding corrected pixel value as a function of the received pixel value and the clamped value associated with the received pixel value;
• and
• outputting for each received pixel value the corresponding corrected pixel value.

A system comprising:

• an image sensor comprising configured to capture an image data;
• an image processor comprising:
• a sharpening clamp circuit configured to receive a sharpening value for each pixel value from pixel values of pixels of a color in a raw input image data, and generate a clamped value for each of the received pixel values as a function of the sharpening value for the corresponding pixel value, the clamped value limiting a degree of sharpening applied to each pixel value;
• and
• a summation circuit coupled to the sharpening clamp circuit, the summation circuit configured to generate for each received pixel value a corresponding corrected pixel value as a function of the received pixel value and the clamped value associated with the received pixel value, and output the corresponding corrected pixel value.