An electronic device for aligning orientations of scanning images includes a scanning module, a storage module, an identification module, a timing unit, an alignment module, and a control unit. The control unit controls the scanning module to scan N scanned objects at different times and to store N scanning images corresponding to the N scanned objects into the storage module. The control unit controls the identification module to identify orientations of the N scanning images. The control unit controls the timing unit to calculate time intervals among the N scanning images. The control unit determines whether to control the alignment module to align orientations of a second scanning image to an Nth scanning image of the N scanning images with orientation of a first scanning image of the N scanning images according to the time intervals among the N scanning images calculated by the timing unit.

An electronic device for aligning orientations of scanning images includes a scanning module, a storage module, an identification module, a timing unit, an alignment module, and a control unit. The control unit controls the scanning module to scan N scanned objects at different times and to store N scanning images corresponding to the N scanned objects into the storage module. The control unit controls the identification module to identify orientations of the N scanning images. The control unit controls the timing unit to calculate time intervals among the N scanning images. The control unit determines whether to control the alignment module to align orientations of a second scanning image to an Nth scanning image of the N scanning images with orientation of a first scanning image of the N scanning images according to the time intervals among the N scanning images calculated by the timing unit.

An image forming system includes a first image forming apparatus, a second image forming apparatus, a determining unit, and a display unit. The first image forming apparatus includes a first image forming unit that forms an image with a first developer of a process color. The second image forming apparatus includes a second image forming unit that includes a second developer and that forms an image with the second developer. The second developer has characteristics different from characteristics of the first developer on a medium. The determining unit determines, on the basis of image formation conditions designated by a user, a printing order in which an image formed with the first developer and an image formed with a second developer are printed on one medium, and determines a sequence in which the image forming apparatuses perform image formation on the basis of the determined printing order. The display unit displays the sequence determined by the determining unit.

An image reading device includes an image reading portion, a detection processing portion, a determination processing portion, and a rotation processing portion. The image reading portion is configured to read an image of a document. The detection processing portion is configured to detect a face image included in a read image read by the image reading portion. The determination processing portion is configured to determine an orientation of the face image when the face image is detected by the detection processing portion. The rotation processing portion is configured to rotate the read image so as to cause the orientation of the face image determined by the determination processing portion to coincide with a predetermined specific direction when the orientation of the face image does not coincide with the specific direction.

An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a mark and generate a scanned image, and circuitry to calculate a correction value to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry calculates the correction value to adjust a position of an image to be formed on a second face of the recording medium based on a first scanned image generated from a first face of the recording medium, within a period from when the first scanned image is generated from the first face to when the image starts to be formed on the second face.

A slide rack determination system for a digital slide scanning apparatus. In an embodiment, a motor drives a slide rack at a known rate toward an engagement surface. The elapsed time until engagement may be used to detect the presence or absence of the slide rack and/or the height of the slide rack. In addition, one or more sensors may detect one or more features of the slide rack, and these feature(s) may be used to determine the presence or absence of a slide rack, whether usage of the slide rack is supported or unsupported by the digital slide scanning apparatus, the orientation of the slide rack, and/or the manufacturer and/or model of the slide rack.

Aspects of the present disclosure provide methods and apparatuses for processing a digital image of a document, for example, to determine whether the document is a long document. An exemplary method generally includes obtaining a plurality of digital images of the document, segmenting at least a first digital image of the plurality of images into pixels associated with a foreground of the first digital image and pixels associated with a background of the first digital image, detecting a plurality of contours in the segmented first digital image, deciding, for each detected contour of the plurality of contours, whether that contour is an open contour or a closed contour, and determining that one or more sides of the document is out-of-bounds based, at least in part, on the decisions.

An image forming apparatus includes an image forming unit configured to form a predetermined pattern image on a sheet, a notifying unit configured to provide a notification of an orientation for placing the sheet on which the predetermined pattern image is formed by the image forming unit, on a placement portion, a reading unit configured to read the sheet on a line to line basis, to generate image data, and a detection unit configured to detect a streak-shaped image extending in a direction along a predetermined edge of the sheet, by analyzing the image data generated by reading the sheet by the reading unit, wherein the notifying unit provides a notification of a placement orientation for allowing the sheet, on which the predetermined pattern image is formed, to be read on a line to line basis, the line extending in a direction along the predetermined edge.

Aspects of the present disclosure provide methods and apparatuses for processing a digital image of a document, for example, to determine whether the document is a long document. An exemplary method generally includes obtaining a plurality of digital images of the document, segmenting at least a first digital image of the plurality of images into pixels associated with a foreground of the first digital image and pixels associated with a background of the first digital image, detecting a plurality of contours in the segmented first digital image, deciding, for each detected contour of the plurality of contours, whether that contour is an open contour or a closed contour, and determining that one or more sides of the document is out-of-bounds based, at least in part, on the decisions.

Aspects of the present disclosure provide methods and apparatuses for processing a digital image of a document, for example, to determine whether the document is a long document. An exemplary method generally includes obtaining a plurality of digital images of the document, segmenting at least a first digital image of the plurality of images into pixels associated with a foreground of the first digital image and pixels associated with a background of the first digital image, detecting a plurality of contours in the segmented first digital image, deciding, for each detected contour of the plurality of contours, whether that contour is an open contour or a closed contour, and determining that one or more sides of the document is out-of-bounds based, at least in part, on the decisions.