High dynamic image generation

A method of image processing, the method comprising:

• receiving, with processing circuitry, a first image generated using dual conversion gain (DCG) mode with a first exposure duration, the DCG mode including combining a first gain image generated using a first level of gain with the first exposure duration and a second gain image generated using a second level of gain with the first exposure duration to generate the first image;
• receiving, with the processing circuitry, a second image generated with a second exposure duration, the second exposure duration being greater than the first exposure duration;
• generating, with the processing circuitry, a first high dynamic range (HDR) image based on the first image and second image;
• outputting, with the processing circuitry, the first HDR image;
• receiving, with the processing circuitry, a third image generated using the DCG mode with the first exposure duration;
• generating, with the processing circuitry, a second HDR image based on the third image and the second image;
• and
• outputting, with the processing circuitry, the second HDR image.

Non-transitory computer-readable storage media storing instructions thereon that when executed cause one or more processors to:

• receive a first image generated using dual conversion gain (DCG) mode with a first exposure duration, the DCG mode including combining a first gain image generated using a first level of gain with the first exposure duration and a second gain image generated using a second level of gain with the first exposure duration to generate the first image;
• receive a second image generated with a second exposure duration, the second exposure duration being greater than the first exposure duration;
• and
• generate a first high dynamic range (HDR) image based on the first image and second image;
• output the first HDR image;
• receive a third image generated using the DCG mode with the first exposure duration;
• generate a second HDR image based on the third image and the second image;
• and
• output the second HDR image.