JPH06131429A - Picture processor - Google Patents

Abstract

PURPOSE:To provide the means which changes color information in an arbitrary area of a picture without designating the color to be changed in this area and the color density after the change with respect to the picture color processing method. CONSTITUTION:A picture whose color features should be converted is inputted in a picture input part 1. The inputted picture has a partial area designated by an area designating part 3. Color features in the designated partial area are detected by a color feature detecting part 4, and a color feature area including the color features is detected in accordance with detected color features and picture data by a color feature area detecting part 6, and color features in this area are converted by a color feature conversion part 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for extracting image information from images and synthesizing the information.

[0002]

2. Description of the Related Art In recent years, color processing technology for color images has been used for various purposes and is becoming more and more vigorous. In the conventional color processing of a color image, the color processing is performed so as to change a specified area and a specified color to a specified color density as disclosed in Japanese Patent Laid-Open No. 01-194751, for example. There is. Also, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent Laid-Open No. 3-013472, color correction is performed by visually observing a monitor.

[0003]

As a color processing method of a color image, the color adjustment of the entire image by visual observation on the monitor is performed as in the above method. In this method, the hue of a partial area of the image is adjusted. There is a problem that you cannot do it. Further, there is a problem that the color changing process cannot be automatically performed by the method of changing the designated area and the designated color to the designated color density.

The present invention provides a means for changing the color information of an area in an image color processing method without designating the color to be changed and the color density after the change in an arbitrary area of the image. With the goal.

[0005]

An area designating section for designating a small area including a color to be changed, an image color feature detecting section for detecting a color feature of an image of the designated small area, and a detected image. A color feature region detection unit that obtains a region including color features and a color feature conversion unit that changes color information are provided.

[0006]

With the above-described structure, the present invention changes the color information of a partial area of an image without designating the color to be changed in any area of the image and the color density after the change.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of the present invention. 1
2 is an input unit for two-dimensional image data, 2 is a storage unit for image data, 3 is a region specifying unit for an image, 4 is a color feature detecting unit for an image, and 5 is a color feature from a color feature for an image. It is a color characteristic region detection unit that calculates a characteristic region. An image color feature conversion unit 6 is provided.

An image whose color characteristics are to be converted is input in the image input unit 1. The input image is the area designation unit 3
Partial area is specified in. The color feature detecting unit 4 detects the color feature in the designated partial region, and the color feature region detecting unit 6 detects the color feature region including the color feature from the detected color feature and the image data. Then, the color features in the area are converted by the color feature conversion unit 6.

FIG. 2 is a detailed explanatory view of an embodiment of the present invention. Regarding the image processing device configured as described above, FIG.
Therefore, the operation will be described below. A two-dimensional image 7 is input by an input device such as a scanner, is stored in the image data storage unit, and is displayed by the image display device 8.
A region 9 of the image 6 is designated by a position designation device 10 such as a mouse in an electronic computer, and the position information is input to the color feature detection unit 11. The color feature detection unit 11 calculates a histogram of all hue values in the perceptual color system calculated by, for example, an arithmetic device from the color information of the image area indicated by the position information, and the hue value range of the peak width of the histogram is calculated. Is output as the color feature information 12. An area having the hue feature of the image is detected by the color feature area detection unit 13 from the hue information given by the histogram and the position information of the image with respect to the hue. Color feature information is converted by the addition and integration of hue values for the area,
An image obtained by converting only the color feature information is given as an output result.

[0011]

As described above, according to the present invention, with respect to a color image input in advance, an area designating section for designating a partial area of the color image and a color of the image of the small area designated by the area designating section. The image color feature detection unit that detects the features of the image, the color feature region detection unit that detects the region that belongs to the same group as the specified small region from the color features and the image information, and the color of the image in the detected region. By including the color feature conversion unit that changes the feature, the color information of a partial region of the image is changed without designating the color to be changed and the color density after the change in an arbitrary region of the image.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of one embodiment of the present invention.

[Explanation of symbols]

 1 image input unit 2 image data storage unit 3 area designation unit 4 color feature detection unit 5 color feature area detection unit 6 color feature conversion unit 7 image data 8 image display device 9 designated region 10 position designation device 11 color feature detection unit 12 colors Features 13-color feature area detection unit 14-color feature conversion unit 15-color feature conversion image

Claims (1)

[Claims] 1. An image color feature for detecting a color feature of an image of a small region designated by the region designating unit and a region designating unit designating a partial region of the color image for a color image inputted in advance. A detection unit, a color feature region detection unit that detects a region that belongs to the same group as the designated small region from the color feature and image information, and a color feature conversion unit that changes the color feature of the image in the detected region An image processing apparatus comprising: