| 摘要 |
<p>An image processing apparatus is provided which can reduce an amount of data representing an image, whilst avoiding a negative effect on the image quality. The image processing apparatus comprises a square circuit, an addition circuit, a register and a shift circuit which are arranged to calculate a root-mean-square value of pixel data. Also, a square of a mean of the pixel data is calculated by the addition circuit, the register, the shift circuit and the square circuit. Then, by a subtraction circuit, a difference between the root-mean-square value of the pixel data and the square of a mean of the pixel data is calculated. The value is applied for generation of activity data indicating complexity of the image. <IMAGE></p> |
