Patent ID: 7536058

Claim:
An imaging apparatus, comprising: an imaging device to take an image; a device to create a reduced image for display by resizing and reducing the image, and compressing the resized and reduced image at a compression rate T 0 ; a device to obtain a size y 1 of a compressed main image when the image is compressed at the compression rate T 0 , by using a size ×1 of the reduced image for display compressed at the compression rate T 0 , and using a correlation y=a*x+b, where y is a size of a compressed main image at a specified compression rate, x is a size of a reduced image for display at the specified compression rate, and a and b are coefficients, and to obtain another compression rate T 1 for compressing the image in a proximity of a target size based on the compression rate T 0 and the obtained size y 1 ; and a compression device to compress the image to the target size by the another compression rate T 1 , wherein a y-intercept of the correlation is modified from b to b*L when a high-frequency component extracted from the image before an imaging instruction or the image immediately after the imaging is a minimum level corresponding to a value of L, and the y-intercept of the correlation is modified from b to b*H when the high-frequency component extracted from the image before the imaging instruction or the image immediately after the imaging is a maximum level corresponding to a value of H, and a value of the high-frequency component and the y-intercept have a proportional relationship.