Method and device for correcting chromatic aberration in multiple bands

An electronic device comprising:

• a non-transitory memory;
• and
• one or more processors configured to:
• obtain an image;
• split the image to produce a high-frequency component image and a low-frequency component image;
• downsample the low-frequency component image to generate a downsampled low-frequency component image;
• correct chromatic aberration of the downsampled low-frequency component image to generate a color-corrected downsampled low-frequency component image;
• upsample the color-corrected downsampled low-frequency component image to generate a color-corrected low-frequency component image;
• and
• combine the color-corrected low-frequency component image and the high-frequency component image to generate a color-corrected version of the image.

A non-transitory computer-readable medium having instructions encoded thereon that, when executed by one or more processors of an electronic device, causes the electronic device to perform a method comprising:

• obtaining an image;
• splitting the image to produce a high-frequency component image and a low-frequency component image;
• downsampling the low-frequency component image to generate a downsampled low-frequency component image;
• correcting chromatic aberration of the downsampled low-frequency component image to generate a color-corrected downsampled low-frequency component image;
• upsampling the color-corrected downsampled low-frequency component image to generate a color-corrected low-frequency component image;
• and
• combining the color-corrected low-frequency component image and the high-frequency component image to generate a color-corrected version of the image.