Patent ID: 8872946

Claim:
An image signal processing system comprising: data conversion logic configured to convert unsigned input image data deriving from a digital sensor into signed input image data to preserve negative noise from the sensor; and a raw image processing pipeline configured to process the signed input image data into processed signed image data; wherein: the data conversion logic is configured to scale the signed input image data by a programmable scale value; or the data conversion logic is configured to right-bit-shift the signed input image data to scale the signed input image data by a programmable or non-programmable scale value; or the data conversion logic is configured to offset the signed input image data by subtracting an offset value to set a zero-bias in the signed input image data; or the data conversion logic comprises a function of input direct memory access logic; or the raw image processing pipeline is configured to process the signed input image data into the signed processed image data by overlapping tiles of a larger image frame captured by the sensor; or any combination thereof.