Image data processing for multi-exposure wide dynamic range image data

An integrated circuit (IC), comprising:

• a memory circuit;
• an interface circuit to receive input exposure data corresponding to multiple exposures of an image from an image sensor, the interface circuit operative to store first input exposure data associated with a first exposure of the image in a first memory portion of the memory circuit, and to store second input exposure data associated with a second exposure of the image in a second memory portion of the memory circuit;
• and
• a processing circuit to process exposure data corresponding to the multiple exposures of the image, the processing circuit including:
• a single pre-processing circuit operative to:
• perform initial image processing on the first input exposure data from the first memory portion to generate first pre-processed exposure data associated with the first exposure of the image,
• store the first pre-processed exposure data in a third memory portion of the memory circuit, and
• perform initial image processing on the second input exposure data from the second memory portion to generate second pre-processed exposure data associated with the second exposure of the image, and
• a merge circuit to process the first and second pre-processed exposure data to generate merged image data representing the image.