Patent ID: 11871119
Assignee: BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. An imaging device, comprising
an image sensor configured to capture an image, and
divide an image into a plurality of blocks, the plurality of blocks being arranged in a plurality of rows and a plurality of columns, each of the plurality of blocks comprising a plurality of pixels,
for each row of the plurality of rows:
for each block of the row:
accumulate, by one of the plurality of registers of the processor,

brightness values of the plurality of pixels in the block to obtain an
accumulated brightness value;
calculate, by one of a plurality of first dividers of the processor, an average brightness value of the block according to the accumulated brightness value; and

write the average brightness value of the block into a first random access memory, and

clear the plurality of registers in response to writing the average brightness value of each block of the row into the first random access memory, and

obtain, by a second divider of the processor, an exposure evaluation value according to the average brightness values of the plurality of blocks and predetermined weight coefficients of the plurality of blocks.