Image reading apparatus for executing image processing based on a reliability level according to a number of conveyance mechanisms clamping a medium

An image reading apparatus comprising:

• a plurality of conveyance mechanisms for clamping and conveying a medium;
• an imaging device for generating an input image of a medium;
• a storage device for storing relative positions of each of the plurality of conveyance mechanisms with respect to an imaging position of the imaging device;
• and
• a processor to
• process the input image based on at least a region in the input image, a reliability level of which is greater than or equal to a threshold value;
• generate a processed image, wherein the plurality of regions are divided, in such a way that each number of conveyance mechanisms clamping a medium when pixels in each of the plurality of divided regions in the input image are photographed is the same, based on the relative positions, and wherein the reliability level increases as the number of conveyance mechanisms clamping the imaged medium when each of the plurality of divided regions is photographed increases;
• and
• output the processed image.

An image processing system comprising:

• an image reading apparatus and an information processing apparatus, wherein the image reading apparatus includes:
• a plurality of conveyance mechanisms for clamping and conveying a medium;
• and
• an imaging device for generating an input image of a medium,
• a storage device for storing relative positions of each of the plurality of conveyance mechanisms with respect to an imaging position of the imaging device, and wherein
• the information processing apparatus includes a processor to:
• process the input image based on at least a region in the input image, a reliability level of which is greater than or equal to a threshold value;
• generate a processed image, wherein the plurality of regions are divided, in such a way that each number of conveyance mechanisms clamping a medium when pixels in each of the plurality of divided regions in the input image are photographed is the same, based on the relative positions, and wherein the reliability level increases as the number of conveyance mechanisms clamping the imaged medium when each of the plurality of divided regions is photographed increases;
• and
• output the processed image.

A control method for an image reading apparatus including a plurality of conveyance mechanisms for clamping and conveying a medium, an imaging device for generating an input image of a medium, and a storage device for storing relative positions of the plurality of conveyance mechanisms with respect to an imaging position of the imaging device, the method comprising:

• processing the input image based on at least a region in the input image, a reliability level of which is greater than or equal to a threshold value;
• generating a processed image, wherein the plurality of regions are divided, in such a way that each number of conveyance mechanisms clamping a medium when pixels in each of the plurality of divided regions in the input image are photographed is the same, based on the relative positions, and wherein the reliability level increases as the number of conveyance mechanisms clamping the imaged medium when each of the plurality of divided regions is photographed increases;
• and
• outputting the processed image.