Patent ID: 11908113
Assignee: CVITEK CO. LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. An image processing device, characterized in that the image processing device comprises:
an input port configured to
(a) receive a to-be-processed image;

a processor configured to
(b) obtain a target brightness of the to-be-processed image;
(c) create a histogram curve of the to-be-processed image;
(d) clip the histogram curve according to a clipping value;
(e) obtain a mapping function of the clipped histogram curve;
(f) obtain a mapped image mapped according to the mapping function;
(g) obtain an average brightness of the mapped image;
(h) obtain a difference between the target brightness and the average brightness; and
(i) if the difference is greater than a threshold value, adjust the clipping value and repeat step (c) to step (i) until the difference is less than the threshold value.