Patent ID: 7889936

Claim:
An image forming apparatus comprising: an image capture unit including a camera lens configured to capture an image of an object; a signal processing unit configured to process image data captured by the image capture unit; a rotation unit configured to rotate image data processed by the signal processing unit; at least two quantization tables; a quantization table selection unit configured to select one of the at least two quantization tables; and a compression unit configured to compress image data, wherein the at least two quantization tables includes a first quantization table providing a first compression ratio and a second quantization table providing a compression ratio higher than the first compression ratio, wherein the quantization table selection unit selects the second quantization table when the compression unit compresses image data processed by the signal processing unit, and selects the first quantization table when the compression unit compresses image data rotated by the rotation unit, and wherein the compression unit forms image data by compressing an image using the quantization table selected by the quantization table selection unit.