An image forming system may comprises an image forming unit, a sensor, and a controller. The controller configured to control the sensor based on measurement modes including a first measurement mode and a second measurement mode. A sampling number of an image by the sensor while the sensor moves in the direction orthogonal to the conveying direction in the first measurement mode is less than a sampling number of an image by the sensor while the sensor moves in the direction orthogonal to the conveying direction in the second measurement mode.

An image processing apparatus according to the present invention includes an image forming unit configured to form an image, a measuring unit configured to measure the formed image, a control unit configured to control execution of a single-color calibration to be performed to correct reproduction characteristics of a single-color formed by the image forming unit based on a measuring result of a single-color image formed with a single-color recording agent and execution of a multi-color calibration to be performed to correct reproduction characteristics of a multi-color image formed by the image forming unit based on a measuring result of a multi-color formed with a plurality of recording agents, and a selection unit configured to select whether to cause the control unit to perform the multi-color calibration after completing the single-color calibration or cause the control unit to perform any one of the single-color calibration and the multi-color calibration.

A test color sheet of color strips of color patches is used in calibration operations for a printing device. Control color patches are used to identify each color strip and the scanning direction of any measured data captured by a color measurement tool. The control color patches have a unique pattern for each row. The patterns are changed according to an updating process that associates each unique pattern with its respective color strip. Scanning operations may be done in any sequence or direction without having to update the data being captured. The control color patches include a specified control color that differs from the color patches used for calibration operations.

An object management system includes an identifier generation device and an object collation device. The identifier generation device includes a generation unit that forms an ink layer on a target object, an imaging unit that images an uneven pattern on a surface of the ink layer, and a registration unit that registers the imaged result in a storage unit. The object collation device includes an imaging unit that images the uneven pattern on the surface of the ink layer formed on the target object, and a recognizing unit that recognizes the target object based on an image of the uneven pattern obtained by imaging.

A test color sheet of color strips of color patches is used in calibration operations for a printing device. Control color patches are used to identify each color strip and the scanning direction of any measured data captured by a color measurement tool. The control color patches have a unique pattern for each row. The patterns are changed according to an updating process that associates each unique pattern with its respective color strip. Scanning operations may be done in any sequence or direction without having to update the data being captured. The control color patches include a specified control color that differs from the color patches used for calibration operations.

The invention is a system for color analysis, which comprises a hand-held device and a working platform. The hand-held device is provided with a camera and installed with analysis software. The work platform is placed with an object to be tested, a standard color carrier is installed at both front and rear sides or at both left and right sides of the object to be tested, a positioning frame extends upward around the working platform, the positioning frame and the working platform are mutually formed an inclination angle, and the positioning frame is used to fix the hand-held device. In this way, the camera can shoot the working platform in an inclined direction, and then the analysis software is used to compare a color difference between the object to be tested and the standard color carrier to obtain analysis result of the object to be tested.

An image reading apparatus includes: a reader that reads an image on a print medium, and is arranged at a reading position of a conveyance path for conveying the print medium that is continuous and has a long length; a shading unit including a reference color member to perform shading correction of correcting a read value of an image sensor in the reader; a mover that moves the shading unit between the reading position of the reader and a retreated position; and a retractor that retracts the print medium from the reading position of the reader, wherein the retractor arranges the print medium at the reading position of the reader at a time of reading by the reader, and retracts the print medium from the reading position of the reader at an end of reading by the reader, to secure a predetermined space between the reader and the print medium.

An information processing apparatus includes a web browser, and an acquisition unit configured to acquire, from a color measurement device, a color measurement result which is a result obtained by performing color measurement of a printed chart using the color measurement device, wherein a screen related to color measurement of a chart for performing color validation by comparing a color measurement result of a chart and a color reference is displayed using the web browser, and wherein the color measurement result acquired by the acquisition unit is displayed using the web browser.

A system for performing color validation by comparing a color measurement result of a chart and a color reference, the system including a first information processing apparatus, wherein the first information processing apparatus includes a colorimetric setting for performing color validation by comparing a color measurement result of a chart and a color reference, a transmission unit configured to transmit screen information of a screen for receiving a chart printing instruction, a receiving unit configured to receive the colorimetric setting and the chart printing instruction, and a generation unit configured to generate print data of a chart based on the colorimetric setting and the chart printing instruction.

Color calibration for digital pathology is provided. A standard glass slide is prepared with a specimen having zero or more stains. The specimen is scanned a first time using a hyperspectral imaging system to produce a first digital image having XYZ color values. The specimen is scanned a second time using a digital pathology imaging system to produce a second digital image having RGB color values. The first and second digital images are then registered against each other to align the digital image data. Individual pixels of the first and second images may be combined in the registration process so that the first and second digital images have substantially similar pixel sizes. A lookup table is generated to associate XYZ color values to RGB color values. Once the lookup table has been generated, it can be used to present RGB color on a display using the corresponding XYZ color.