Method of and apparatus for removing show-through from scanned image
AssigneeSamsung Electronics Co., Ltd.
InventorYoung-hoon JEONG
Life of this patent
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Abstract
Provided are a method and apparatus for removing show-through from a scanned image. The method includes scanning at least one line in a medium at a first intensity in a first scanning operation; scanning the at least one line in the scanning medium at a second intensity different from the first intensity, in a second scanning operation; and removing show-through from an image obtained during the first scanning operation based on a difference in a show-through effect between images obtained during the first and second scanning operations.
Claims23
A method of removing show-through from a scanned image, comprising:
- scanning at least one line in a medium at a first intensity, in a first scanning operation;
- scanning the at least one line in the scanning medium at a second intensity different from the first intensity, in a second scanning operation;
- and
- removing show-through from an image obtained during the first scanning operation based on a difference in a show-through effect between images obtained during the first and second scanning operations.
An apparatus of removing show-through from a scanned image, comprising:
- a scanning unit which performs a first scanning operation on at least one line in a medium at a first intensity and performs a second scanning operation on the at least one line at a second intensity different from the first intensity;
- and
- a control unit which removes show-through from an image obtained during the first scanning operation based on a difference in a show-through effect between images obtained during the first and second scanning operations.
A computer-readable storage medium having embodied thereon a computer program for executing a method of removing show-through from a scanned image, the method comprising:
- scanning at least one line in a medium with a first intensity, in a first scanning operation;
- scanning the at least one line in the scanning medium with a second intensity different from the first intensity, in a second scanning operation;
- and
- removing show-through from an image obtained during the first scanning operation based on a difference in a show-through effect between images obtained during the first and second scanning operations, in a show-through removing operation.
A method of removing show-through from a scanned image, the method comprising:
- obtaining a first image by scanning a line of an image using light irradiated at a first brightness level;
- obtaining a second image by re-scanning the scanned line of the image using light irradiated at a second brightness level which differs from the first brightness level;
- and
- removing show-through from the scanned image using a difference in degree of show-through between the scanned image and the re-scanned image.
An apparatus for removing show-through from a scanned image, the apparatus comprising:
- a scanning unit including:
- a scanning sensor which obtains first image information of a first line by a first scanning operation and obtains second image formation of the first line by a re-scanning operation;
- and
- an optical driver which irradiates light;
- and
- a control unit which controls the optical driver to irradiate light at a first brightness level for the first scanning operation, controls the optical driver to irradiate light at a second brightness level which differs from the first brightness level for the second scanning operation, and removes show-through from the first image information using a difference in degree of show-through between the first image information and the second image information.
Dependencies are inferred from the claim text.