Image reading apparatus providing high quality images through synthesis of segmented image data

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information of said original image;
• distortion correction means for correcting distortion of said division image information;
• and
• density determining means for determining whether said division image areas are uniform in density, wherein said distortion correction is skipped when said division image areas are uniform in density.

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading Operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information of said original image;
• and
• said data processing unit preferentially performing a synthesis process on division image information sets of a center portion of said original image.

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information of said original image;
• division number setting means for setting division areas for said second reading operation from said resolution;
• and
• said division image information having information of an area which is wider than said division area, and said adjacent sets of division image information having an overlap portion.

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information of said original image;
• and
• said data processing unit including density variance value detection means for detecting a density variance value of synthesis areas of said division images, and connecting-sequence determining means for determining a sequence of connecting said adjacent division image information sets from said density variance value.

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information of said original image;
• and
• said data processing unit including average density detection means for detecting and outputting an average density of pixels in the neighborhood of synthesis areas of said division images.

An image reading apparatus for reading an original image, comprising:

• an imaging device;
• optical means located for exposing said imaging device and capable of moving in two directions perpendicular to each other;
• a reading operation control unit for controlling a first reading operation in which whole information of said original image is read, and a second reading operation in which division image information in division areas of said original image is read;
• resolution setting means for setting a resolution in said second reading operation;
• image display means for displaying said original image which is read in said first reading operation, wherein an area designated by said designating means is displayed together with said original image on said image display means;
• further comprising reading area designating means for designating a reading area in said second reading operation, and original image display means for displaying an original image which is read in said first reading operation;
• and
• a data processing unit for connecting a plurality of adjacent division image information sets which are read in a plural number of times in said second reading operation, so as to generate front view image information which corresponds to said designated area only;
• wherein only the front view image information which corresponds to said designated area is displayed again on said original image display means.