Image processing device, method and program

An image processing method for an image processing device including a storage means for storing image data and a transfer means for enlarging or reducing the image data stored in a first region of the storage means at a predetermined transfer magnification and transferring the image data to a second region other than the first region of the storage means, the method comprising the steps of:

• storing the image data in the first region of the storage means;
• and
• transferring the image data to the second region of the storage means by enlarging or reducing the image data stored in the first region of the storage means at a predetermined transfer magnification, wherein
• the image data is enlarged or reduced at the predetermined transfer magnification by performing an enlarging or reducing process on the image data once when the predetermined transfer magnification is within an inclusive range of values between a predetermined upper-limit threshold and a predetermined lower-limit threshold, and
• the image data is enlarged or reduced at the predetermined transfer magnification by repeating, by a plurality of times, a divided-transfer process of performing an enlarging or reducing process on the image data at a divided-transfer magnification that is within the inclusive range of values between the upper-limit threshold and the lower-limit threshold when the predetermined transfer magnification is not within the inclusive range of values between the upper limit threshold and the lower-limit threshold.

A non-transitory, computer-readable storage medium storing a computer program that, when executed by a computer controlling an image processing device including a storage means for storing image data and a transfer means for enlarging or reducing the image data stored in a first region of the storage means at a predetermined transfer magnification and transferring the image data to a second region other than the first region of the storage means, causes the computer to perform a control process, the control process comprising:

• storing the image data in the first region of the storage means;
• and
• transferring the image data to the second region of the storage means by enlarging or reducing the image data stored in the first region of the storage means at the predetermined transfer magnification, wherein
• the image data is enlarged or reduced at the predetermined transfer magnification by performing an enlarging or reducing process on the image data once when the predetermined transfer magnification is within an inclusive range of values between a predetermined upper-limit threshold and a predetermined lower-limit threshold, and
• the image data is enlarged or reduced at the predetermined transfer magnification by repeating, by a plurality of times, a divided-transfer process of performing an enlarging or reducing process on the image data at a divided-transfer magnification that is within the inclusive range of values between the upper-limit threshold and the lower-limit threshold when the predetermined transfer magnification is not within the inclusive range of values between the upper limit threshold and the lower-limit threshold.

An image processing device comprising:

• a storage unit for storing image data;
• and
• a transfer unit for enlarging or reducing the image data stored in a first region of the storage unit at a predetermined transfer magnification and transferring the image data to a second region other than the first region of the storage unit, wherein
• the transfer unit enlarges or reduces the image data at the predetermined transfer magnification by performing an enlarging or reducing process on the image data once when the predetermined transfer magnification is within an inclusive range of values between a predetermined upper-limit threshold and a predetermined lower-limit threshold, and
• the transfer unit enlarges or reduces the image data at the predetermined transfer magnification by repeating, by a plurality of times, a divided-transfer process of performing an enlarging or reducing process on the image data at a divided-transfer magnification that is within the inclusive range of values between the upper-limit threshold and the lower-limit threshold when the predetermined transfer magnification is not within the inclusive range of values between the upper limit threshold and the lower-limit threshold.