JPH0668249A - Color blotting preparing device - Google Patents

Abstract

PURPOSE:To expand the adaptive range of a design simulation for which a color blotting is used by preparing the color blotting of an arbitrary range of an arbitrary image, using a full-color blotting method. CONSTITUTION:This device is composed of a CPU 2-1, and command input devices 2-2, 2-3, an image input device 2-4, storage devices 2-5, 2-6 and output devices 2-7, 2-8 connected with this CPU. At this stage, the range of a blotting origin to be picture element range which becomes the core blotting color is designated, the blotting width to be the width of the aggregation of picture element for which colors are blotted is designated, a blotting ratio is set to a blotting ratio value table based on the blotting width and the external side one dot of the range where the color blotted range is added to the picture element range to be blotted is determined as the aggregation of blotting picture element. Further, the blotting ratio value is acquired from the blotting ratio value table, blotting color is calculated and the blotting color is colored. Lastly, whether the color blotting preparing processing is performed by the same number of times as the blotting width is judged and the processing is terminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color-blurring creating device, and more particularly to a color-blurring creating device used for industrial design, interior design, exterior design, fashion design, and watercolor style graphic simulation.

[0002]

2. Description of the Related Art Conventionally, this type of color-blurring creating device includes a command input device for giving operation instructions, an image input device for inputting images such as photographs, pictures and videos, and a storage device for storing image data. It is composed of a data processing device connected to the input device and the storage device for processing data, and an output device for displaying an output of the data processing device and arbitrarily making a hard copy.

A color-blurring creating process by the conventional color-blurring creating apparatus will be described with reference to FIGS.

FIG. 5 shows an image for which color fringing is to be created. The squares that are divided in a grid shape and pixels indicate pixels. Each pixel is represented by x, y coordinates, and the color (luminance) of each pixel of the target image is represented by C _{x, y} where the coordinates of the pixel are x, y. For example, the color of the pixel of x = 1 and y = 2 is represented by C _1,2 . As shown in FIG. 5, C _6,6 = C _6,7
= C _7,6 = C _7,7 = C _a . Pixels shown as blank in FIG. 5 have an arbitrary color.

As shown in FIG. 6, (6, 6), (6,
7), (7, 6) The range of the single color Ca of the four pixels at the coordinates of (7, 7) is designated as the bleeding source range 1 which is the core of the bleeding color creation.

Next, as shown in FIG. 7, the periphery of the bleeding source range 1 (when there is already a bleeding range after a part of the color bleeding creation processing has been performed, the bleeding source range and the bleeding range A color-blurring creation process is performed on a pixel set 2 having a 1-pixel width of (surroundings). In this color fringing creation processing, the fringing g _{x, y} of each pixel in the pixel set 2 is obtained by the following equation (1).

G _{x, y} = C _a × P _m + C _{x, y} × (1−P _m ) ... (1) In the above equation, P _m is a bleeding rate and is a bleeding rate shown in FIG. Get from value table. The color fringing creation processing is performed for the first time, for the one pixel width surrounding the original range of the color fringing, for the second time, for the pixel group of the surrounding one pixel width, and for the surroundings for the third time. To do. The _m of the bleeding rate P _m represents the number of times, and the bleeding rate P _m is used in the m-th time color fringing creation processing performed around the m-th pixel from the range of the bleeding source. Therefore, in the color bleeding creation process in the pixel set 2 shown in FIG. 7, the bleeding color g _5,5 , g _5,6 , g _{5,7 of} each pixel shown in FIG. 8 is used by using the bleeding rate P ₁ in the bleeding rate value table. ，
g _5,8 , g _6,8 , g _7,8 , g _8,8 , g _8,7 , g _8,6 , g
_{Calculate 8,5} , g _7,5 and g _6,5 .

[0008]

In the above-described conventional color fringing creating apparatus, the single color C in the above equation (1) is used.
_{Since the} bleeding color g _{x, y} is obtained from _a and the pixel color C _{x, y ,} there is a drawback that the pixels in the bleeding source range must be a single color.

[0009]

SUMMARY OF THE INVENTION A color-blurring creating apparatus of the present invention is a color-blurring creating apparatus for creating an image in which a color around a fringing source range in an image is smeared. Performing a color-blurring creation process that bleeds the color of each pixel group of one pixel around the bleeding range that has been processed, and obtains the average of the colors of the pixels within the bleeding source range or the bleeding range adjacent to the target pixel, The bleeding color of the target pixel is calculated using the bleeding rate value based on the average and the color of the target pixel.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.
From the CPU 2-1 and command input devices 2-2, 2-3, image input device 2-4, storage devices 2-5, 2-6, output devices 2-7, 2-8 connected to the CPU 2-1. Composed.

The command input device includes a keyboard 2-2.
And there is a mouse 2-3. The keyboard 2-2 inputs instructions such as starting and ending of the device. The mouse 2-3 inputs instructions such as creation of a bleeding target area and execution of bleeding. The image input device includes a color scanner 2-4.

The color scanner 2-4 fetches image data such as photographs and pictures into the CPU 2-1. In the storage device,
There are a floppy disk 2-5 and a hard disk 2-6. Floppy disk 2-5, hard disk 2-6
Both store the image data taken in from the color scanner 2-4 and the image data after blur generation. The output device is
There is a graphic display 2-7 and a color hard copy device 2-8. The graphic display 2-7 displays the captured image and the image data after blurring. The color hard copy device 2-8 prints out the image after the blur generation.

The CPU 2-1 operates in response to a command from the keyboard 2-2 or the mouse 2-3, displays the image data input by the color scanner 2-4 on the graphic display 2-7, and creates a bleed target area. Create a blur in the area.

The overall flow of color fringing creation will be described with reference to the flow chart shown in FIG.

In step 1-1 of FIG. 2, a bleeding source range, which is a core pixel range for bleeding a color, is designated. At this time, the range shape is arbitrary, and the colors within the range are not limited.
In step 1-2, the bleeding width n, which is the width of the pixel set in which the color is bleeding, is designated. In step 1-3, the bleeding rate is set in the bleeding rate value table based on the bleeding width. In step 1-4, one dot outside the range obtained by adding the color-blurred range (validated after the second processing loop) to the image range to be blurred (specified in step 1-1) is obtained as a blurred pixel set.

In step 1-5, the mth bleeding rate value is acquired from the bleeding rate value table. Here, m indicates the number of times of color fringing creation processing. In step 1-6, the bleed color is calculated. In step 1-7, each bleeding pixel of the bleeding pixel set is colored with a bleeding color. In step 1-8, it is determined whether the color fringing creation processing has been performed the number of times designated in step 1-8, that is, the same number of times as the fringing width n, and if not, step 1-4
Returning to this, if the color fringing processing has been performed the designated number of times, the processing is terminated.

The calculation method of the bleeding color in step 1-6 will be described with reference to FIG. As shown in FIG. 3, the pixel g for the range 3 in which the original range and the already-blurred range are combined.
A case of calculating the bleeding color of m _{(x, y)} will be described.
The eight pixels around the pixel gm _{(x, y)} are gm as shown in FIG.
_{(x-1, y-1)} , gm _{(x-1, y)} , gm _{(x-1, y + 1)} , gm
_{(x, y + 1)} , gm _{(x + 1, y + 1)} , gm _{(x + 1, y)} , gm
_{Let (x + 1, y-1)} and gm _{(x, y-1)} .

A pixel {gm adjacent to the target pixel gm _{(x, y)
(x, y-1)} , gm _{(x, y + 1)} , gm _{(x-1, y)} , gm
_{(x-1, y + 1)} , gm _{(x-1, y-1)} , gm _{(x + 1, y)} , gm
Letting S be the sum of pixels in the bleeding source range or pixels in the bleeding range in _{(x + 1, y + 1)} , gm _{(x + 1, y-1)} }, the average AC of the colors of these pixels is It becomes like the formula (2) shown in. However _, the color (luminance) of pixel gm _{(x, y} ) is gmc _{(x, y)}
The flag f indicates whether or not the pixel is in the bleed source range or the bleeding range. The flag f takes a value of 1 when the pixel is in the original range of the blur or the range of the blur-excluded range, and 0 otherwise.

AC = {gmc _{(x, y-1)} · f _{(x, y-1)} + gmc _{(x, y + 1)} · f _{(x, y + 1)} + gmc _{(x-1, y)} · f _{(x-1, y)} + gmc _{(x-1, y + 1)}・ f _{(x-1, y + 1)} + gmc _{(x-1, y-1)}・ f _{(x-1, y-1)} + gmc _{(x + 1, y)} · f _{(x + 1, y)} + gmc _{(x + 1, y + 1)} · f _{(x + 1, y + 1)} + gmc _{(x + 1, y-1)} · f _{( x + 1, y-1)} } / S ... (2) blur pixel gm _{(x, y)} of bleeding color gmg _{(x, y)} is the current pixel gm _(x, color _y) gmc _{(x, y ),} if the bleeding ratio was P _m, the _{gmg (x, y) = gmc} (x, y) · P m + AC · (1-P m) ... (3).

The bleeding color of the pixel g1 ₃₃ shown in FIG. 4 is g1g.
₃₃ becomes like the following formula (4).

[0022] _{g1g 33 = g1C 33 · P m} + {(C 44 + C 34 + C 24) / 3} (1-P m) ... (4) In _{addition, C 44, C 34, C} 24, ... are bleeding source range Is the color of each pixel.

The calculation of the bleeding color as described above is performed in RGB 3
Do about colors.

[0024]

As described above, according to the present invention, it is possible to create color bleeding in an arbitrary range of an arbitrary image by using the full-color color bleeding method, and it is possible to widen the applicable range of design simulation using color bleeding. There is.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the embodiment shown in FIG.

FIG. 3 is a diagram for explaining bleed color calculation in step 1-6 of FIG.

FIG. 4 is a diagram for explaining bleed color calculation in step 1-6 of FIG.

FIG. 5 is a diagram showing an image targeted by a conventional color fringing generation device.

6 is a diagram in which a blur source range 1 is specified in the image shown in FIG.

7 is a diagram showing a pixel set 2 for performing a bleeding color creation process around the bleeding source range 1 shown in FIG.

8 is a diagram showing pixels for coloring a bleed color of the pixel set 2 shown in FIG.

FIG. 9 is a diagram showing a bleeding rate value table used for processing in the conventional color bleeding creation apparatus shown in FIGS. 5 to 8;

[Explanation of symbols]

 2-1 CPU 2-2 Keyboard 2-3 Mouse 2-4 Color Scanner 2-5 Floppy Disk 2-6 Hard Disk 2-7 Graphic Display 2-8 Color Hard Copy

Claims (1)

[Claims] 1. A color-blurring creation device for creating an image in which the color around the bleeding source range in an image is created, and one pixel around the bleeding source range or the already-blurred range that has already been subjected to color-blurring creation processing. The color bleeding creation process is performed to bleed each pixel set, and the average of the colors of the pixels within the bleeding source range or the bleeding range adjacent to the target pixel is obtained, and the bleeding rate is based on this average and the color of the target pixel. A color-blurring creation device, wherein a blurred color of the target pixel is calculated using a value.