Image signal processor and electronic device and electronic system including the same

An electronic device comprising:

• an image sensor configured to sense light passing through a display, and output a first image signal including a global pixel value sensed during a unit frame interval;
• and
• an image signal processor connected to the image sensor and configured to:
• receive the first image signal;
• generate a second image signal obtained by correcting the global pixel value included in the first image signal using a first neural network;
• split the first image signal into a first sub-image signal and a second sub-image signal, and split the second image signal into a third sub-image signal and a fourth sub-image signal;
• and
• generate a first signal based on the first sub-image signal and the third sub-image signal using a second neural network, and generate a second signal based on the second sub-image signal and the fourth sub-image signal.

An electronic system comprising:

• an electronic device including an image sensor, an image signal processor and a communication processor;
• and
• a data center configured to exchange data with the communication processor,
• wherein the image sensor is configured to output a first image signal including a global pixel value sensed during a unit frame interval, and provide the first image signal to the image signal processor,
• wherein the image signal processor is configured to generate a second image signal using a first neural network based on a first weight and the first image signal provided from the image sensor, and generate a third image signal using a second neural network different from the first neural network based on a second weight, the first image signal, and the second image signal,
• wherein the communication processor is configured to provide the first weight, the second weight, the first image signal, and the third image signal to the data center, and
• the data center is configured to generate a third weight obtained by correcting the first weight, and a fourth weight obtained by correcting the second weight, based on the first weight, the second weight, the first image signal, and the third image signal, and provide the third weight and the fourth weight to the electronic device.