Samsung Electronics Co., Ltd.

Hewlett-packard Development Company, L.p.

S-printing Solution Co., Ltd.

Hp Printing Korea Co., Ltd.

Woo-jun Chung

Kyeong-man Kim

Hyun-soo Oh

Nam-ju Shin

In-ho Park

Sang-Ho Kim

Hyung-jong Kang

Joo-young Jung

Jeong-hun Kim

Jung-mo Hong

Jae-min Shin

Sung-Hyun Lim

Heui-keun Cho

Eun-ah Song

Choon-Woo Kim

Yeong-ho Ha

Min-ki Cho

Sang-Youn Shin

Ho-jin Ahn

In-Su Jang

Min-uk Seo

Byong-tae Ryu

Jong-ok Lee

Kyeong-Man Kim

Provided is a color compensation method in an image forming apparatus. The color compensation method may include imaging a first color chart by a first image forming apparatus, scanning the imaged first color chart, comparing information regarding the scanned first color chart and information regarding a reference color chart to determine an international color consortium (ICC) profile of the first image forming apparatus, and performing color compensation on the first image forming apparatus based on the determined ICC profile.

Method and device for color compensation

An image forming apparatus is provided. The image forming apparatus includes: a storage configured to store a color conversion table; an image former configured to print a compensation chart corresponding to the color conversion table; a scanner configured to scan the printed compensation chart; and a changer configured to understand a range of brightness that the image former is able to represent using the scanned compensation chart, generate a gamma curve corresponding to the understood range of brightness, and change the color conversion table based on the generated gamma curve.

Image forming apparatus and method for revising color

A print controlling apparatus includes a storage to store a plurality of color feature information, an acquirer to acquire color feature information of a second image forming apparatus, a moderator to moderate color converting table of a first image forming apparatus by using the acquired color feature information and the plurality of color feature information stored in the storage, and a controller to perform printing jobs regarding the first image forming apparatus by using the moderated color converting table.

Print controlling apparatus, image forming apparatus, method of color revising and computer-readable recording medium

A present color compensating method includes receiving selection of an input ICC profile and an output ICC profile, receiving selection of a plurality of color rendering intents to be applied to an ICC profile, generating a color conversion table using the selected input ICC profile, the selected output profile, and the selected plurality of color rendering intents, and generating print data using the generated color conversion table.

Print controlling terminal and method for compensating colors

An image forming apparatus and an image quality calibration method in the image forming apparatus, the image forming apparatus including a printing unit to print a calibration chart in one mode selected from a plurality of resolution modes, a scanning unit to scan the printed calibration chart, and a calibrating unit to calibrate an image using color values of the scanned calibration chart according to the plurality of resolution modes.

Image forming apparatus and image quality calibration method thereof

A color correction method includes displaying an expected print image of a test image of the image forming apparatus on a monitor, outputting the test image to the image forming apparatus, performing color matching between the output test image and an expected print image on the monitor, changing an ICC profile of the monitor according to the performed color matching, and generating a print data using the changed ICC profile. Also a print controlling terminal which performs the color correction method.

Print controlling terminal and color correction method generating print data using monitor profile changed based on comparison of printed test image to expected print image displayed on monitor

An image processing method and an image processing apparatus converts a binary image into a grayscale image by increasing the size and information quantity of the binary image. The image processing method includes generating a plurality of lookup tables having multiple gray level values assigned to a predetermined pattern of the binary image such that the gray level is retrieved from the plurality of lookup tables depending on the context of the block being processed. The binary image may be converted into the grayscale image by applying the gray value of one of the plurality of lookup tables that corresponds to the context, such as the frequency components of the binary image. With this configuration, since the size and information quantity of an image can be reduced for transmission, it is possible to prevent deterioration of image quality when the image is restored, while also printing at a higher speed.

Image processing using hybrid lookup table

An image forming apparatus capable of setting optimal print options for test prints of a primitive image and a method thereof. The image forming apparatus includes an image data processing part to create a plurality of test images by converting a primitive image according to a plurality of predetermined sets of print options, an image print part to print the plurality of test images created by the image processing part, a key input part to select one of the plurality of the printed test images, and a control part to set the print options of the selected test image using the key input part print options of the primitive image. Accordingly, the user need not separately set print options for more than one test print performed by more than one print job, since the optimal print options of the primitive image are set by comparing and selecting the test images pre-printed according to the different sets of print options.

Image forming apparatus to set optimal print options for test prints of primitive images and method thereof

An electrophotographic image forming apparatus and a halftoning correction method thereof are provided. The electrophotographic image forming apparatus according to the example embodiments of the present invention, comprises a storage unit storing a plurality of dot patterns representing print characteristics of a print engine, a data area dividing unit dividing halftoned print data into data areas respectively having the same size as the dot patterns, a pattern extraction unit extracting an appropriate dot pattern with respect to each of the divided data areas by comparing dots in the data areas to the dot patterns, and a pattern converter changing the data area to the extracted dot pattern. Therefore, an optimal halftoned image can be provided.

Electrophotographic image forming apparatus and halftoning correction method thereof

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Suwon-si, South Korea

Woo-jun Chung