An image processing is configured to convert a color of a first object into gray having first brightness and a color of a second object into gray having second brightness lower than the first brightness by a fixed value in response to receiving color data including the first object and the second object, and output gray data based on the first brightness of gray into which the color of the first object is converted and the second brightness of gray into which the color of the second object is converted.

A data protection method is provided. The data protection method includes the following. A first image is obtained; at least one first object image in the first image is identified; the at least one first object image is analyzed to capture multiple first characteristic values of multiple characteristic points of the at least one first object image; and an encryption key is generated according to the first characteristic values.

There is disclosed an apparatus and method of aligning content put through a duplex scanner. By performing operations on data extracted from physical documents, digital documents that would otherwise appear skewed can be un-skewed. The process compares two images, e.g. a front and a back page for a document, and determines how they are offset from one another. The process uses a projection profile error minimization technique to calculate a translation for one or both pages to digitally align the margins for a digital document such that the margins match.

An apparatus configured to generate image data represented in achromatic color from input image data and output the generated image data to a printer includes a controller. The controller is configured to replace color information of an object included in the input image data with an achromatic signal value, determine, based on an achromatic signal value corresponding to color information of a pixel of interest in the input image data, whether the pixel of interest satisfies a predetermined condition, and perform enhancement processing on the color information of the pixel of interest in a case where the pixel of interest is determined not to satisfy the predetermined condition.

An image processing device includes an image reader that reads an image, a first determiner that determines whether character crushing occurs when the image is binarized, a second determiner that determines a rate of a photographic region in the image, and a controller that performs conversion into monochrome N-gradation image data based on determination results of the first and second determiners.

A method for transmitting a monochrome digital image from a digital image source connected to a monochrome scrZeen by a transmission interface including a plurality of transmission channels, the monochrome image including a plurality of image pixels, the monochrome screen including a plurality of display pixels, the method including dividing the image pixels into a plurality of pixel groups; successively transmitting the pixel groups from the digital image source to the monochrome screen via the transmission interface, the image pixels of each group of pixels being transmitted in parallel via the transmission channels; assigning each image pixel received by the monochrome screen to a corresponding display pixel in such a way as to reconstruct the digital image on the monochrome screen.

An information processing apparatus includes at least one memory device that stores a set of instructions, and at least one processor that executes the set of instructions. The set of instructions includes instructions to acquire color data from an application, set a generation method for generating gray image data from color data by selecting a method from a group including at least a first generation method and a second generation method different from the first generation method, generate PDL data of gray image data based on the acquired color data and the set generation method, and transmit the generated PDL data to a printing apparatus.

An apparatus includes a setting unit and a control unit. The setting unit performs a first print setting indicating a poster printing function that divides a single piece of image data into a plurality of pieces of image data and generates print jobs, and a second print setting indicating a correction function for correcting calculated gray values when an image processing apparatus converts a plurality of pieces of color image data to grayscale, based on a number of colors acquired from each of the plurality of pieces of color image data. The control unit restricts the setting unit from performing the first print setting and the second print setting. In a state where one of the first print setting and the second print setting is performed by the setting unit, the control unit controls the setting unit not to perform the other print setting.

A method for optical camera quality enhancement is provided. The method includes receiving, by an electronic device, an image frame of a scene including at least one object from a preview field of a camera of the electronic device, determining, by the electronic device, at least one region of the image frame affected by distortion, generating, by the electronic device, a pixel disparity map comprising a refraction coefficient associated with each pixel of the image frame based on the at least one region affected by the distortion, determining, by the electronic device, a plurality of regions on the pixel disparity map, each of the plurality of regions including pixels that have a similar pixel disparity, estimating, by the electronic device, an optimal orientation of the electronic device to minimize the distortion in the image frame based on the plurality of regions on the pixel disparity map, and displaying, by the electronic device, an indication indicating the optimal orientation of the electronic device.

A system performs a method for processing an image of a machine-readable code. The method includes receiving an image of a machine-readable code comprising coded information, where the machine-readable code is at least partially obscured by a substance that has a predominant color; generating an adjusted image by adjusting a color space of the image based on the predominant color; binarizing at least a machine-readable code region of the image, wherein the machine-readable code region of the image depicts the machine-readable code; and decoding the binarized machine-readable code region to determine the coded information. Other apparatus and methods are also described.