1 results about "Image post processing" patented technology

This invention relates to the field of image processing technology, specifically to a pixel processing method, apparatus, device, and storage medium for images. The method includes: receiving image data of an original image captured by a sensor; dividing the n pixels into a first set and a second set by detecting whether n first pixel values ​​are 0; determining a first virtual black level in the first set based on the first pixel values, the true black level, and the bit width; setting the black level of each pixel in the second set to a second virtual black level; and statistically obtaining n virtual black levels corresponding to the n pixels; cropping the n first pixel values ​​to obtain n second pixel values; and performing post-processing on the image using the n second pixel values ​​to obtain the original image. After virtual black level cropping, this method retains some pixel values ​​that are not 0, preserving smaller values, thereby retaining pixel color or detail in extremely dark areas and optimizing image contrast and detail.