Image signal processor, operating method thereof, and image processing system including the image signal processor

An image signal processor comprising:

• an image processing circuit configured to sequentially perform image processing on image frames received from an image sensor based on a frame rate of the image frame being above a threshold;
• a direct memory access (DMA) controller configured to store, in a memory, processing data generated by the image processing circuit;
• and
• a fast readout circuit configured to receive, from a control processor, setting information including N, where N is an integer of 2 or more, setting values corresponding to N image frames, and provide a setting value of an image frame on which image processing is performed, to the image processing circuit or the DMA controller, based on image processing being sequentially performed on the N image frames.

An operating method of an image signal processor, the operating method comprising:

• receiving N, where N is an integer of 2 or more, setting values from a control processor;
• storing the N setting values in a storage area;
• receiving image frames from an image sensor;
• sequentially performing image processing on N image frames from among the image frames based on the N setting values based on a frame rate of the image frame being above a threshold;
• and
• generating an end interrupt signal based on completion of the image processing performed on the N image frames.