摘要 |
A random noise evaluation method is comprised of: capturing and obtaining current image data; calculating a difference between the current image data and an average of previous image data; calculating a current difference square sum using a sum of the difference and a previous difference square sum; and calculating a random noise value using the current difference square sum. Since a noise evaluation algorithm obtains random noises without storing image data for all pixels of a*b*n, it is able to evaluate random noise evaluation for a high-resolution image sensor even with a relatively small size of memory.
|