Systems and methods for selectively illuminating objects located within the field-of-view of an image sensor used to capture images in a machine-readable symbol reader. In an active illuminated reading mode, a light source illuminates objects as the image sensor captures images. In a self-illuminated object reading mode, used to capture images of smartphone, tablet, or other self-illuminating displays, the image sensor captures images without the light source illuminating the objects. The machine-readable symbol reader transitions between the two modes based upon distance and light-level measurements taken of the various objects that are within the field-of-view of the image sensor.

An image reading apparatus includes a reading unit, which includes an illumination portion for irradiating an original placed on an original table with light and a light receiving portion for receiving irradiated light reflected from the original. The image reading apparatus reads the original one line at a time in a main scanning direction according to the received reflected light. The image reading apparatus determines the size of the original based on the reading result of the reading unit. The image reading apparatus shortens, in a case where the platen cover is in an open state, the lighting duration of the illumination portion than the duration where the platen cover is in a close state.

A circuit acquires, as white correction data, read image data generated by reading an image of a reference member when light of each of three colors of a light source is sequentially emitted to the reference member; acquires, as original document image data, the read image data generated by moving the image sensor and by reading, with an image sensor, an image of an original document; determines, as an original document non-existence position, a position of a pixel at which all of the original document image red, green, and blue data have a same value; converts the original document image data to output image data by performing shading correction on the original document image data based on white correction data; and replaces the output image data at the original document non-existence position with a value closer to data indicative of white color than a value of the output image data.

An image processing apparatus converts, according to light on an image printed based on input image data, the input image data into image data for illumination output superimposed on the image, includes a deriving unit deriving an observing condition, an estimating unit estimating luminance characteristics based on the observing condition and reflectance characteristics corresponding to print image data, an introducing unit introducing target luminance characteristics based on the print luminance characteristics, a setting unit setting illumination converting characteristics converting the input image data into the image data for illumination output based on the print luminance characteristics and the target luminance characteristics, and a converting unit converting gradation of the input image data using the illuminance characteristics, and the introducing unit introducing the target luminance characteristics such that, when reproducing ranges in the print luminance characteristics are different, a linear region of output luminance of relatively large reproducing range becomes larger.

A power management apparatus attached to a first image forming apparatus configured to switch a power supply switch to an OFF state, includes an energy storage device configured to supply electric power to the apparatus, a communication interface configured to receive a state of a second image forming apparatus from a communication device attached to the second image forming apparatus, and a mechanical switch configured to physically displace a power supply switch of the first image forming apparatus and turn a power supply of the first image forming apparatus ON and OFF based on the state of the second image forming apparatus.

An image reading device (1) includes a light emission control portion (84), an image scanning portion (11), and a difference data sequence generating portion (852, 853, 855). The difference data sequence generating portion (852, 853, 855) sequentially obtains image data sequences of a linear area both when a light emitting portion is in a light-on state and when the light emitting portion is in a light-off state. In addition, the difference data sequence generating portion (852, 853, 855) sequentially generates difference data sequences (Ys) that are results of subtracting an image data sequence (X2) obtained in a light-off state of the light emitting portion from an image data sequence (X1) obtained in a light-on state of the light emitting portion, among a pair of image data sequences (X1, X2) obtained at each blinking cycle of the light emitting portion.

A system and method provides for adjusting an output display on a display device including receiving a plurality of images representing visual artworks from a networked data storage location and storing the plurality of images in a local memory device. In a stationary picture frame, the method and system includes detecting at least one ambient condition using an environmental sensor affixed to the stationary picture frame and analyzing the ambient condition to determine ambient condition factors. The method and system includes selecting one of the plurality of images from the local memory device, the selected image having content data and characteristic data and analyzing the characteristic data of the selected image. Thereby, the method and system provides for adjusting display settings on an output display of the stationary picture frame displaying the content data of the selected image on the output display.

The present method and system provides for interacting with a display device including accessing an external content database having images stored therein, and storing a plurality of the images to a local memory device associated with the display device and therein displaying one or more of the images on an output display. The method and system includes displaying a user interface screen on the output display of the display device and detecting, via at least one of a plurality environmental sensors, a user gesture external to the display device, the user gesture relating to gesture-based control of the display device. The method and system determines a gesture context value relating to the detected gesture and accesses a gesture library to retrieve an interface command. The method and system thus updates the output display of the at least one of the plurality of images based on the interface command.

A power management apparatus attached to a first image forming apparatus configured to switch a power supply switch to an OFF state, includes an energy storage device configured to supply electric power to the apparatus, a communication interface configured to receive a state of a second image forming apparatus from a communication device attached to the second image forming apparatus, and a mechanical switch configured to physically displace a power supply switch of the first image forming apparatus and turn a power supply of the first image forming apparatus ON and OFF based on the state of the second image forming apparatus.

An image reading device includes an original document transport device, a first reading module and a control portion. When the control portion performs the light source turning-on confirmation processing of the first reading module, the control portion performs first opening/closing determination processing for determining the state of the opening and closing of a cover member, light amount acquisition processing for turning on a light source so as to acquire light amount data after it is determined in the first opening/closing determination processing that the cover member is in a closed state, second opening/closing determination processing for determining again the state of the opening and closing of the cover member after the acquisition of the light amount data in the light amount acquisition processing and light amount determination processing for determining the light amount after it is determined that the cover member is in the closed state.