Digital image conversion method and apparatus, storage medium, and device

A non-transitory storage medium comprising computer executable instructions, the computer executable instructions when executed by a processor of a computer, causing the processor to execute a digital image conversion method, wherein the method comprises:

• acquiring an RGB indication signal of a forward-correlated pixel of a current pixel;
• comparing an RGB signal of the current pixel with the RGB indication signal of the forward-correlated pixel;
• acquiring a YUV indication signal of the forward-correlated pixel and assigning the YUV indication signal to a YUV signal of the current pixel, if the RGB signal of the current pixel is identical to the RGB indication signal of the forward-correlated pixel;
• and
• recalculating the YUV signal of the current pixel according to the RGB signal of the current pixel, if the RGB signal of the current pixel is different from the RGB indication signal of the forward-correlated pixel,
• wherein, according to different YUV data formats, the different YUV data formats comprising a YUV 422 data format and a YUV 420 data format, the forward-correlated pixel is in an identical row with the current pixel and the forward-correlated pixel and the current pixel are two columns apart, or the forward-correlated pixel is in a previous row and the forward-correlated pixel and the current pixel are two columns apart, or the forward-correlated pixel and the current pixel are two rows apart and two columns apart.

A device, comprising:

• one or more processors;
• and
• a memory;
• wherein one or more programs are stored in the memory, and when executed by the one or more processors, cause the one or more processors to perform operations, the operations comprise:
• acquiring an RGB indication signal of a forward-correlated pixel of a current pixel;
• comparing an RGB signal of the current pixel with the RGB indication signal of the forward-correlated pixel;
• acquiring a YUV indication signal of the forward-correlated pixel and assigning the YUV indication signal to a YUV signal of the current pixel, if the RGB signal of the current pixel is identical to the RGB indication signal of the forward-correlated pixel;
• and
• recalculating the YUV signal of the current pixel according to the RGB signal of the current pixel, if the RGB signal of the current pixel is different from the RGB indication signal of the forward-correlated pixel,
• wherein, according to different YUV data formats, the different YUV data formats comprising a YUV 422 data format and a YUV 420 data format, the forward-correlated pixel is in an identical row with the current pixel and the forward-correlated pixel and the current pixel are two columns apart, or the forward-correlated pixel is in a previous row and the forward-correlated pixel and the current pixel are two columns apart, or the forward-correlated pixel and the current pixel are two rows apart and two columns apart.