Sony Corporation

Akihiro Takashima

Hideyuki Shimizu

Nobuyuki Minami

Katsuakira Moriwake

Tetsuro Nakata

Hiroshi Yamauchi

Taku Yokoyama

Kazuhiro Maruyama

Masaaki Shino

Shoichi Usui

Mitsuko Honma

The present invention relates to an image processing apparatus that performs predetermined conversion processing with keeping the color of an original image and eliminating processing time necessary for color space conversion, when applying special effects on video signals. The image processing apparatus includes a video signal input section for receiving a video signal having a value represented in a first color space, a signal converting section for performing predetermined conversion processing on a signal having a value represented in a second color space that is different from the first color space, and a signal interface section for supplying the signal converting section with the video signal, received by the video signal input section, that has a value represented in the first color space as a substitute for the signal having a value represented in the second color space.

Image processing apparatus, image processing process, and recording medium

An image special effect device includes: a graphic processor and a video processing block; the graphic processor converting coordinates in virtual three-dimensional space into two-dimensional coordinates on a display screen in accordance with a supply of information on the shape of a model in the virtual three-dimensional space, computing texture coordinates of an image that is pasted on the display screen and a reduction rate of the model on the display screen, and outputting information on the texture coordinates and reduction rate from an image data output unit; the video processing block writing input video data YUV into a memory after filtered by using a pre-filter coefficient corresponding to information on the reduction rate supplied from the graphic processor, and reading out the video data from the memory by using the supplied texture coordinates as information of read-address.

Image special effect device, graphic processor and recording medium

An image transformation apparatus is provided, which includes a modeling unitthat calculates the coordinates of vertices of each polygon and calculates a pre-filter coefficient corresponding to a reduction ratio at the position of a vertex of each polygon, with respect to a model to which an image is attached to; a texture address unitthat converts the coordinates of vertices of each polygon calculated in the modeling unitinto the coordinates of each pixel and sets a read address for attaching an image to the model using the coordinates of each pixel; a filter coefficient unitthat converts a pre-filter coefficient calculated in the modeling unitinto a pre-filter coefficient at the position of each pixel; an H-direction pre-filter, an HV scan converterand a V-direction pre-filterthat perform filtering on input image data with a pre-filter coefficient obtained through conversion in the filter coefficient unit; a texture memoryto which image data filtered in the H-direction pre-filter, HV scan converterand V-direction pre-filter, is written; and a texture memory controllerwhich reads out image data from the texture memoryin accordance with a read address set in the texture address unit

Image transformation apparatus, image transformation circuit and image transformation method

The color of plural pixels making up a source video image is corrected by a computer , a hard disc device and a picture processing device . The computer functions as a parameter setting unit for setting plural parameters for designating the source color and the destination color and a computing unit for computing correction data for color correction from the source color to the destination color using the plural parameters set by the parameter setting unit. The hard disc device stores the source video image and effects color correction in the picture processing device for correcting the color of a pixel corresponding to the source color contained in the source video image to the destination color.

Color correction device, color correction method, picture processing device, and picture processing method

Imaging processing method for mapping video source information onto a

Special effect device, image processing method, and shadow generating

An image crop circuit performs a crop process for an input video image under the control of a CPU. An image shape changing circuit performs an image shape changing process such a mosaic process for a video signal that is cropped corresponding to a control signal. The image shape changing circuit supplies the video image to a graphic inserter circuit. A GDC that is a graphic dedicated CPU draws a positive region of a contour line of the crop region as a solid line and a negative region as a dotted line. The graphic inserter circuit superimposes the contour line with the video signal that is cropped and outputs the resultant signal to both a CRT monitor and an output terminal.

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Kanagawa, Japan

Akihiro Takashima