Provided is an image conversion method that allows for the representation, on a display, the light and shade of a printed image obtained by printing the image on paper. The image conversion method includes a step of acquiring an illumination-light component and a reflectance component from an input image, a step of correcting the illumination-light component in accordance with display luminance information of a print mode in which the input image is to be printed, so that light and shade of the input image displayed on a display come close to light and shade of a printed image obtained by printing the input image in the print mode, and a step of acquiring a combined image by combining the corrected illumination-light component and the reflectance component or the corrected reflectance component.

The invention relates to a method for converting (S1) an image (7) by means of an evaluation unit (4) of a motor vehicle (1), wherein the image (7) is captured from an environmental region (6) of a motor vehicle (1) by means of a camera (3) of the motor vehicle (1), and the image (7) includes an alpha channel (12) and at least one color channel in a predetermined color model, and the image (7) is converted into an alpha channel (12) and a Y channel (9) of a YUV color model and a U channel (10) of the YUV color model and a V channel (11) of the YUV color model, wherein in converting the image (7), the alpha channel (12) and the Y channel (9) and the U channel (10) and the V channel (11) are embedded in a converted image (8) of the image (7).

An apparatus for image conversion includes a processor configured to classify a reference region representing a predetermined feature into a shadowed region and an unshadowed region, the reference region being in an aerial image represented in RGB color space; determine a tone correction factor so that a difference between an average luminance of the shadowed region and an average luminance of the unshadowed region in the aerial image represented in predetermined color space to which the color space of the aerial image is converted from RGB color space is less than a difference between an average luminance of the shadowed region and an average luminance of the unshadowed region represented in RGB color space; correct tones of the aerial image with the tone correction factor; and convert the color space of the aerial image from RGB color space to the predetermined color space to generate a color conversion image.

An image forming apparatus outputs a tone chart for calibration by a printer, reads the output tone chart by a scanner, determines whether data on a sheet is affected by a surface shape of the sheet based on the read tone chart, corrects data on a white area of the read chart based on a result of the determination, and executes calibration using the corrected data.

An information processing apparatus includes a recognition unit that recognizes an object which is included in an image and is expressed using a single color, and a conversion unit that performs conversion on a pixel, which is included in the image and corresponds to a designated color, into a specific color, and, in a case where a color of an area, which is in contact with an outer edge of the recognized object, is designated and a difference between the color of the recognized object and the specific color is smaller than a first reference, performs conversion on a pixel of the outer edge into a color other than the specific color.

An image reproduction system and methods for providing colorant data to an end device. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Described herein is a system and method for tinting of a computer-generated object. Selection of a target color to be applied to be an object is received. The target color can have a luminosity component and a chroma component (e.g., the luminosity, hue, chroma (LHC) color space). Based, at least in part, upon at least one of the luminosity component or the chroma component of the target color, one or more tinting methods of a plurality of tinting methods is selected to tint the object to the target color. The object can be tinted using the selected one or more tinting methods, and, the tinted object provided (e.g., stored and/or displayed to a user via a graphical user interface).

The invention relates to a method for the digital acquisition of an intraoral structure by scanning the structure using an intraoral color scanner which, according to the invention, is designed to correct color values of the scanning points using a color reference template of a reference color space.

An image processing method in a diagnosis assisting device that diagnoses lesions from a picked-up image, the method including A) performing an image correction on the picked-up image for diagnosis, and B) obtaining an input image to an identifier that identifies diseases based on the picked-up image having undergone the image correction. In A), when a brightness correction is performed as the image correction, a peripheral area other than a diagnosis area that has a high probability as diseases in the picked-up image is set to be a measuring area, a brightness histogram is created relative to the measuring area, a correction gain value is calculated based on a peak value of the created brightness histogram, and each of pixels in a color space is corrected by using the calculated correction gain value.

An image processing system includes an image forming apparatus, and an image processing apparatus connected to the image forming apparatus. The image forming apparatus forms an image, acquires a chromaticity value that is a result of measurement of a sheet on which the image is formed with use of a sensor in which a characteristic of a light source is fixed, and transmits the acquired chromaticity value to the image processing apparatus. The image processing apparatus receives the transmitted chromaticity value, specifies a condition when the result of the measurement using the sensor is acquired, and converts the received chromaticity value with use of the specified condition and information regarding an amount of an optical brightening agent contained in the sheet on which the image is formed.