An image processing apparatus includes a processor configured to generate a second color chart from a first color chart. The second color chart includes multiple color samples selected from multiple color samples included in the first color chart, and the second color chart is generated in such a manner that a color sample included in the second color chart is located in the second color chart at a position at least maintaining a partial-adjacency relationship in the first color chart.

An image processing apparatus includes a processor configured to generate a second color chart from a first color chart. The second color chart includes multiple color samples selected from multiple color samples included in the first color chart, and the second color chart is generated in such a manner that a color sample included in the second color chart is located in the second color chart at a position at least maintaining a partial-adjacency relationship in the first color chart.

There is provided an image reading device in which a controller is configured to perform detecting, by executing an edge detection process, edge pixels from image data scanned by a reading device and stored in a storage, the edge pixels being pixels obtained by reading an edge of an original document. Then, it is determined whether a sequence of the detected edge pixels in a particular direction is interrupted. When interrupted, an expansion process is executed to increase the edge pixels in a particular range in a neighborhood of the detected edge pixels of the image data. Then, a particular process is performed on the image data using the edge pixels detected from the image data after the edge pixels are increased.

There is provided an image reading device in which a controller is configured to perform detecting, by executing an edge detection process, edge pixels from image data scanned by a reading device and stored in a storage, the edge pixels being pixels obtained by reading an edge of an original document. Then, it is determined whether a sequence of the detected edge pixels in a particular direction is interrupted. When interrupted, an expansion process is executed to increase the edge pixels in a particular range in a neighborhood of the detected edge pixels of the image data. Then, a particular process is performed on the image data using the edge pixels detected from the image data after the edge pixels are increased.

An image reading apparatus includes an image reading sensor, a transparent plate, a guiding member, a first roller pair, and a second roller pair provided upstream of the first roller pair with respect to a sheet feeding direction. The first roller pair and the second roller pair are disposed so as to nip a sheet in each of nips of the first roller pair and the second roller pair when a leading end of the sheet enters between the guiding member and the transparent plate.

An image reading apparatus includes an image reading sensor, a transparent plate, a guiding member, a first roller pair, and a second roller pair provided upstream of the first roller pair with respect to a sheet feeding direction. The first roller pair and the second roller pair are disposed so as to nip a sheet in each of nips of the first roller pair and the second roller pair when a leading end of the sheet enters between the guiding member and the transparent plate.

A system to determine a relative position between a moveable part and a working surface is disclosed. The system comprises a controller to control a light emitter from an array of light emitters to emit a signal at a setting, the setting being indicative of a position associated with the light emitter. The controller further to receive a signal from the sensor indicative of the setting. The controller also to determine the relative position between a moveable part and the working surface based on the signal.

A see through apparatus receives a paper document. The see through apparatus includes a first scanning element, a second scanning element, and a processor coupled to the first scanning element and the second scanning element. Each of the first and second scanning elements illuminate a respective side of the paper document while the other scanning element captures an image. The processor detects kinematic artifacts on the paper document and determines that the paper document is fraudulent based on the detected kinematic artifacts. The processor also detects an alignment feature from the image capture from the first image or the second image, and determines that the document is not aligned based on the detected alignment feature.

A see through apparatus receives a paper document. The see through apparatus includes a first scanning element, a second scanning element, and a processor coupled to the first scanning element and the second scanning element. Each of the first and second scanning elements illuminate a respective side of the paper document while the other scanning element captures an image. The processor detects kinematic artifacts on the paper document and determines that the paper document is fraudulent based on the detected kinematic artifacts. The processor also detects an alignment feature from the image capture from the first image or the second image, and determines that the document is not aligned based on the detected alignment feature.

An image acquiring device comprises: an automatic document feeder comprising: an input tray supporting an information medium; and a control panel comprising an operation button for selecting one image acquiring side of the information medium; an image acquiring assembly acquiring the image of the image acquiring side; a processor electrically connected to the automatic document feeder, the image acquiring assembly and the operation button; a storage, which is electrically connected to the processor and comprises an image module storing program codes for enabling acquiring the image of the image acquiring side; and an output unit receiving and outputting the image of the image acquiring side. The processor controls the image acquiring assembly to acquire the image of the image acquiring side according to the program codes and different signals of the operation button and transmits the image to the output unit. Associated copying method and system are also provided.