Ricoh Company, Ltd.

Ikuko Yamashiro

Taku Kodama

Takashi Maki

Hiroyuki Sakuyama

Takanori Yano

Takao Inoue

Akira Takahashi

Keiichi Ikebe

Takeshi Koyama

Shin Aoki

Keiichi Suzuki

Yoshinori Hayashi

Seizo Suzuki

Tomohiro Nakajima

Kazuyuki Shimada

Akira Kojima

Taku Amada

Toshio Miyazawa

Takayuki Nishimura

Junichi Hara

Nekka Matsuura

Yasuyuki Nomizu

Yasuyuki Shinkai

Keiichi Suzukii

An ROI setting apparatus including an ROI recognition unit and an ROI control unit is provided. In one embodiment, the ROI recognition unit contains multiple ROI recognition modules for recognizing an ROI of image data according to various methods to obtain a recognition result. The ROI control unit selects one ROI recognition module out of the ROI recognition modules and sets ROI information based on the recognition result. The ROI recognition module may be selected according to an instruction from a user input via an operation unit, or a scene type selected by a scene selection switch of an image capture unit. The ROI control unit may perform operations such as selecting, enlarging, or reducing the ROI recognized by the ROI recognition module, or changing the ROI recognition conditions according to the respective instructions from the user input via the operation unit.

Method and apparatus for setting a region of interest in image data

Efficient utilization of a memory medium is enhanced in an image-processing apparatus, in which encoded data of JPEG 2000 or Motion-JPEG 2000 are stored in the memory medium as a file. File size of the encoded data is adjusted close to, but not to exceed an integer multiple of a memory domain management unit (sector size) of the memory medium. Thereby, a memory domain assigned to the image file in its entirety, or almost in its entirety, is used effectively, improving the efficient utilization of the memory medium.

Image-processing apparatus, an image-processing method, a program, and a memory medium

An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.

Optical scanner and image forming apparatus

An image processing method generating a single image group file from a plurality of still images, by setting an output sequence of the plurality of still images, and adding data indicating a storage location of each of the still images according to the set output sequence, to a header portion of the file.

Image processing method, image expansion method, image output method, image conversion method, image processing apparatus, image expansion apparatus, image output apparatus, image conversion apparatus, and computer-readable storage medium

An image processing apparatus includes a condition setting unit with which a user sets a post-quantization condition. A partial decoding and decompression unit partially decodes and decompresses coded data according to the post-quantization condition set by the user, thereby reproducing image data the same as that reproduced by decoding and decompressing coded data after post-quantization processing in accordance with the post-quantization condition. An image data displaying unit displays on a display unit the image data reproduced by the partial decoding and decompression unit.

Image processing apparatus, image processing method, program, and recording medium that allow setting of most appropriate post-quantization condition

A code stream generating part converts image data into two-dimensional wavelet coefficients, quantizes the same and coding the quantization result so as to compress the image data and generate a code stream. An additional information creating part creates additional information concerning the image data, and an additional information embedding part embeds the thus-created additional information into the code stream as a code in an off-rule zone which is not decoded by a JPEG 2000 standard rule.

Image processing apparatus, image compressing apparatus, image decompressing apparatus, image processing method, image compressing method, image decompressing method, information processing apparatus, information processing method, program and recording medium

An image compression apparatus includes a code size setting unit setting one or more code sizes, a compressing unit compressing an image that is divided into plural image quality levels in accordance with the code sizes, and a code generating unit generating code being dividable into each code size.

Image compression apparatus, image decompression apparatus, image compression method, image decompression method, program, and recording medium

Upon browsing an image stored in an image data source, coded data used for display of the image is acquired from the image data source. The acquired coded data used for the display is decoded/extended, and the image is displayed on a display unit. A user inputs a direction for saving the image displayed on the display unit via a user interface unit. Coded data for the saving of the image directed by the user is acquired from the image data source, such as by additionally acquiring coded data equivalent to a difference between the coded data for the saving and the coded data used for the display from the image data source, and synthesizing the coded data for the saving from the additionally acquired coded data and the coded data used for the display. The acquired coded data for the saving is saved in a storage unit.

Image browsing device acquiring coded data for saving a displayed image from image data source

An image processing apparatus for reproducing a moving image from its encoded data is disclosed. The apparatus includes a decoding unit to decode the encoded data, and a control unit to control the decoding by the decoding unit. The control unit inhibits image reproduction by partial decoding in the decoding unit with respect to the encoded data of a moving image having scalability.

Image processing apparatus and method for scalable encoded image data

An image processing apparatus for generating data to be used for image processing, in which the image processing apparatus includes, a dividing unit dividing code data of a compressed image into a plurality of segments, a code size computing unit computing a code size corresponding to each of the plurality of segments, and a memory unit storing the corresponding relation between the code size and each of the plurality of segments.

Image processing apparatus, image compression apparatus, image processing method, image compression method, program, and recording medium

An image processing method includes obtaining raw image data of an object by generating the object by an imager that generates an image of the object with color decomposition, decomposing the raw image data into a plurality of color planes such that each of the color planes comprises pixel information of a color pertinent to the color plane, and compressing data of each color plane.

Imaging device, image processing method, and recording medium

An image compressing apparatus divides an image into plural tiles, decomposes each tile into plural sub band by frequency conversion, and conducts bit plane encoding of each sub band for each encoding unit, wherein the image compressing apparatus includes a code discarding unit selectively discarding a code obtained by the bit plane encoding for each encoding unit, and wherein the code discarding unit includes a discard amount setting unit that makes generally even the amount of code discarding in the encoding units that are in mutually adjacent relationship across a tile boundary.

Image compression method capable of reducing tile boundary distortion

An image recording apparatus includes means for recording image data in a recording medium; means for obtaining information for determining a data amount reduction remaining force of image data recorded in the recording medium; means for selecting image data determined to have a large data amount reduction remaining force based on the information obtained by the means for obtaining information, with a priority; and means for performing a data amount reduction process against the image data selected by the means for selecting.

Image recording apparatus and image data selection method

In response to a partial codestream truncation command, a partial codestream truncation process unit temporarily truncates a code line of encoded data. The partial codestream truncation process unit can also temporarily truncate the code line frame by frame. In response to an undo command, a restoration process unit restores the encoded data that has temporarily truncated code line. The temporarily truncated frames are included in a group of frames of the moving image. In response to an undo releasing command, a code line discarding unit discards the temporarily truncated code line or frames. The encoded data has a form of JPEG2000 or Motion-JPEG2000.

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Kanagawa, Japan

Ikuko Yamashiro