As another example, in order to generate digital data such as a document or an image, when a digital image is to be imported to the digital data as one object image, the control unit 10 designates the one object image as a digital image to be subjected to image processing. In this case, the control unit 10 initially identifies the resolution of the original digital image (original) as the target resolution with respect to the imported object image at Step S2. Further, in a case in which a digital image is generated based on the image processing program 1P, the control unit 10 may receive setting of a resolution (a canvas size) of the digital image to be generated, and identify the received resolution as the target resolution.

As another example at Step S2, in a case in which an animation image of rotating or deforming a digital image is generated, the control unit 10 may identify approximately half the resolution of the original digital image (original) as the target resolution. Alternatively, the control unit 10 may identify the target resolution according to whether the processed digital image is a moving image, or according to the type and the mode of the original digital image, for example, whether the digital image is a photograph (a video picture), an illustration, or a cartoon, or the gradation of the original digital image.