JP2008242533A - Coloring drawing creation apparatus and method, and program thereof - Google Patents

Abstract

An object of the present invention is to provide a coloring drawing creation apparatus, method, and program capable of easily performing a watercolor painting-like coloring process on a drawing using a computer.
When coloring a closed region R in drawing M, the closed region R is deformed to set a colored region C formed in a rounded shape, and the colored region C is moved by a predetermined distance in a random direction. And set to a position shifted from the closed region R. In addition, the set colored region C is moved by a predetermined distance in a predetermined direction and shifted from the closed region R, and a portion protruding based on the shifted colored region C and the closed region R is set as the shadow region S. And when coloring the coloring area | region C and the shadow area | region S, coloring nearer to a watercolor painting can be performed by coloring lightly from a center part toward a peripheral part.
[Selection] Figure 8

Description

  The present invention relates to a coloring drawing creation apparatus, method, and program for coloring various drawings including outlines such as a white map, a sketch, and a bird's-eye view in different colors.

In drawings such as a white map, a sketch, and a bird's eye view, since they are generally drawn with outlines, the drawn portions are color-coded for easy viewing. In recent years, such drawing data has been drawn using a computer, and accordingly, drawing displayed on the computer has been colored. For example, Patent Document 1 describes that a drawn topographic map is colored based on a contour line corresponding to an altitude. Further, Patent Document 2 describes that a paint process corresponding to the public object type of the attribute information added to the land parcel is performed on the land parcel portion of the graphic information. Further, Patent Document 3 describes a map creation method in which a white map indicating a planar shape of a road or a house is read by a scanner, the road or the house is automatically recognized, and a house number is assigned.
Republished Patent 2003/090184 JP 2001-357177 A Japanese Patent Application Laid-Open No. 5-313566

In Patent Documents 1 and 2 described above, since coloring is basically performed in a single color display, it is assumed that colors are classified according to various categories such as rivers, mountains, roads, residential areas, commercial areas, paddy fields, and fields. It has not been. In other words, the above-described color coding of the drawings has various methods depending on the application, and does not correspond to such a wide application.
In addition, when color classification is performed using a single color, the result is that a very mechanical impression is given, and an appropriate impression cannot be given to the general public when a construction completion forecast is presented. In other words, when presenting a construction completion prediction map or the like to the general public, it may be necessary to paint in a painting style so that a natural texture can be produced instead of uniformly coloring the area. However, it takes time to execute such coloring with conventional software, and how to design a pattern and color to make it easier to see can be learned overnight because it requires talent and experience. Absent.

  For example, in the case of creating a pattern having complex shading and a plurality of colors, it is impossible to have which skill and ability to combine which colors and how to combine them. In addition, it is possible to paste in an arbitrary area by cutting and pasting using an image created in advance, but in order to apply an image cut out to an arbitrary area, it is necessary to modify the cut image Therefore, it takes a considerable amount of time for the operation skill and trial and error.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a colored drawing creation apparatus, method, and program that can easily perform a watercolor painting-like coloring process on a drawing using a computer.

  A coloring drawing creation apparatus according to the present invention includes a dividing processing unit that divides a drawing into closed regions surrounded by outlines based on drawing data including outlines, and a closed region that is colored among the divided closed regions. A selection means for selecting, a region setting means for generating a colored region by modifying the shape of the selected closed region, and setting the colored region by shifting from the closed region; and a coloring process based on the set colored region And coloring processing means for performing the processing. Further, the area setting means sets a shadow area based on the set coloring area and the closed area, and the coloring processing means performs a coloring process based on the set shadow area. To do.

  A coloring drawing creation method according to the present invention is a coloring drawing creation method for coloring drawing data composed of contour lines using a computer, and divides the drawing into closed regions surrounded by the contour lines based on the drawing data. Select a closed region to be colored from among the divided closed regions, generate a colored region by modifying the shape of the selected closed region, set the shifted region from the closed region, and based on the set colored region And coloring treatment. Furthermore, a shadow region is set based on the set coloring region and the closed region, and a coloring process is performed based on the set shadow region.

  A program according to the present invention is a program for causing a coloring drawing creation apparatus to color drawing data composed of contour lines, and contours the drawing based on the drawing data composed of contour lines. Means for dividing into closed areas surrounded by a line, means for selecting a closed area to be colored among the divided closed areas, generating a colored area by modifying the shape of the selected closed area, and shifting from the closed area And functioning as means for setting a colored region and means for performing a coloring process based on the set colored region. Furthermore, the means for setting the coloring area sets a shadow area based on the set coloring area and the closed area, and the means for performing a coloring process performs the coloring process based on the set shadow area. It is characterized by that.

  Since the present invention has the above-described configuration, it includes a region setting means for generating a colored region by modifying the shape of the selected closed region and setting the colored region by shifting from the closed region. In addition, a watercolor-like coloring process can be performed.

  In other words, hand-painted watercolors often have subtle color shading and unevenness in the colored areas.For example, ink painting is performed so that the shading of the ink spreads from the center to the periphery. It has been broken. In addition, in the watercolor painting, drawing is performed not only by strict coloring to every corner of the boundary line but also by using many unpainted areas and protrusions. When these coloring methods are incorporated into the coloring process of the drawing, the impression becomes a light paste as it goes to the periphery of the colored area, giving it an imitation of glue, making the sharp impression of the contour line softer and easier to see, and giving a natural texture. Can be given.

  Therefore, in the present invention, the closed region defined by the contour line is deformed, and the colored region is set to have a rounded shape, for example, so that the sharp impression of the contour line is softened and set to shift from the closed region. As a result, an uncolored gap is generated at the peripheral edge of the closed region, and an impression similar to that of the coloring method of the watercolor painting can be given. And by intentionally shifting the colored area from the contour line, it is possible to give an impression like hand-drawing, and if the setting is made so that the hue becomes lighter from the central part to the peripheral part of the colored area, Coloring close to a watercolor painting can be performed.

  In addition, if the shading area is set based on the set coloring area and the closed area and the coloring process is performed, it is possible to give a more three-dimensional effect and make it easy to see the division of the building and at the same time give a natural texture. Is possible. Then, by incorporating the colored region into the setting of the shaded region, a soothing impression like the colored region can be given to the shaded region. For example, if the shadow area is set by shifting the shape of the closed area, the sharp impression of the closed area consisting of contour lines will be amplified, but by incorporating the rounded shape of the colored area into the outline of the shadow area. In addition, the sharp impression of the closed area can be softened, and the impression of a watercolor painting can be strengthened by a synergistic effect with the colored area. If the shadow area is set so as to be shifted from the closed area in a predetermined direction, the shadow area can be colored like a shadow caused by irradiation with sunlight, and a stereoscopic effect like an aerial photograph can be given.

  Hereinafter, embodiments according to the present invention will be described in detail. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 shows a system configuration diagram relating to an embodiment of the present invention. A coloring drawing creation apparatus 1 operates a coloring drawing creation program 100 installed as application software on a known computer to realize its function. The The basic configuration of the computer is a well-known computer, a CPU 10 that processes logical operations, a RAM 11 that temporarily stores data and programs necessary for logical operations, a ROM 12 that stores programs and the like for executing logical operations, and applications A storage unit 13 for storing software and various types of image information, a display 14 for displaying processing results, a printer 15 for outputting processing results, and an input unit 16 for inputting data and commands necessary for processing are provided. The bus 17 is used for data transmission / reception.

  2 to 8 are explanatory diagrams relating to the coloring process realized by the colored drawing creating apparatus 1. FIG. First, as shown in FIG. 2, when a figure F drawn with a contour line is displayed in the drawing M, a closed region R surrounded by the contour line is defined (FIG. 3).

  Next, in order to set the colored region of the closed region R, dilation (region expansion) processing and erosion (region reduction) processing belonging to a known morphological process are performed on the closed region R. The colored region set by this processing has a rounded shape with the corners of the closed region R removed as shown in FIG. Next, as a process for producing a light color according to the periphery of the colored region, the shortest distance to the outline of each pixel in the colored region C is calculated by the number of pixels, and the calculated number of pixels is the same. A pixel region is defined. The defined pixel region is drawn like a contour line indicated by a dotted line in the colored region C as shown in FIG.

  Next, as shown in FIG. 5, the coloring region C is set to be shifted from the closed region R by a predetermined distance in a predetermined direction or a random direction. In this example, it is shifted in the lower right direction of the drawing. By shifting the colored region C in this way, a non-colored region and a protruding region are generated at the peripheral edge of the closed region R, and an imitation like a watercolor can be given.

  A shadow area is set using the colored area C set in this way. The set coloring region C is moved from the original position in the closed region R by a predetermined distance in a preset direction, and is set to a position shifted from the closed region R (indicated by a region C ′ in the figure). In this example, all shaded areas are set so as to be shifted from the closed area in the predetermined direction on the assumption that the shadows are generated when the sun rays are irradiated from the predetermined direction.

  Based on the outlines of the area C ′ and the closed area R set by shifting the coloring area C in a predetermined direction, as shown in FIG. 6, the outline of the closed area R protrudes from the closed area R of the area C ′. The area surrounded by the outline of the part is set as the shadow area S. For example, if the closed region R is a building viewed from above, the shadow caused by irradiating the outside of the building with sunlight is set as the shaded region S to give the building a three-dimensional effect. . In that case, it is conceivable to set the shaded region by shifting the outline of the closed region R, but the outline of the closed region R is doubled and the sharp impression of the outline is amplified. By using the rounded outline of C, the sharp impression of the outline can be softened. Also, even in an actual aerial photograph, the shape of the shadow of the building, etc. does not match the outline of the building, and these shaded areas are closer to the impression of seeing the shadow of the actual aerial photograph, and at the same time natural Can give a fresh texture.

  The colored region C and the shaded region S set as described above have a positional relationship deviated from the closed region R as shown in FIG. Then, by performing the coloring process on the set coloring area C and shadow area S, as shown in FIG. 8, it is possible to perform a watercolor-like coloring process, and the shift applied to the shadow area S and the coloring area C. Thus, a coloring process with a three-dimensional effect can be performed.

  As the coloring process, a predetermined area is colored with a predetermined color, or a pre-registered colored image is overlaid on the drawing M together with a mask layer, and the mask in the set area is released to form a colored image. You may make it express. In that case, as shown in FIG. 4B, if the color is set to be lighter from the center to the periphery using the pixel area set as a contour line, the painting is more watercolor-like. Can do. Based on black or gray, it may be colored so as to become light gray toward the peripheral portion using the contour lines shown in FIG.

  FIG. 9 is a processing flow for performing a coloring process on a white map composed of contour lines. First, data relating to the outline of the white map is input (S100). In this case, white map data read by a scanner may be used. Next, the area surrounded by the outline is searched based on the white map data, divided into closed areas, and labeling processing is performed on each closed area (S101). Then, from the shape of each closed region, a corresponding identification code is given by checking the degree of coincidence with the pattern shape by type such as a building, road, river, field, mountain, etc. (S102). You may make it correct the identification code provided as needed.

  Next, a colored area is set for each closed area (S103). As shown in FIG. 10, first, a closed region is selected (S200), and a pixel region of the selected closed region is calculated (S201) (see FIG. 4). Then, a predetermined region is selected as a colored region from the calculated plurality of pixel regions (S202), and the selected colored region is moved by a predetermined distance in a predetermined direction or a random direction (S203) (see FIG. 5). ). In the latter case, the moving direction may be determined based on a random number obtained from a known random number generating means. Then, the data of the moved colored area is registered and set (S204).

  Next, it is checked whether another closed area exists (S205). If there is a closed area in which a colored area is not set, the process returns to step S200, and a colored area setting process is performed for another closed area. If colored areas are set for all closed areas, the process ends.

  After setting the coloring area, a shadow area is set (S104). As shown in FIG. 11, first, a closed region to which a predetermined identification code, for example, a building identification code is assigned, is selected (S300). Data of the colored region relating to the selected closed region is read (S301), and the colored region is moved by a predetermined distance in a predetermined direction from the original position of the closed region (S302) (see FIG. 5). Then, the shadow area is set using the moved colored area and closed area data (S303) (see FIG. 6). In this case, if the irradiation direction of the sun rays at a predetermined time is obtained based on the latitude and longitude of the white map, and the shadow area is shifted and set in the irradiation direction, a shadow close to an aerial photograph can be expressed.

  Next, it is checked whether another closed area exists (S304). If there is a closed area in which no shadow area is set, the process returns to step S300, and a shadow area setting process is performed for another closed area. If the shadow area is set for all the closed areas to which the predetermined identification code is assigned, the process ends.

  Then, a coloring process is performed on the set coloring area and shadow area (S105). As described above, the coloring process for the coloring region can be performed more like a watercolor painting if the coloring is performed so that the color becomes lighter from the central part toward the peripheral part. Moreover, it is good to make it a different hue for every identification code. For example, in a closed region such as Tabata, if the pattern of shades from the central part to the peripheral part is different in each closed region, the coloring process rich in variety without being monotonous shades. It can be carried out. In addition, even in the case of a building, it is possible to perform a coloring process that is easier to see by subdividing and assigning to buildings, houses, etc., and making them different colors. The coloring process for the shadow region may be performed so as to become light gray from the original closed region toward the peripheral portion of the shadow region.

  12 to 14 are schematic diagrams in the case of performing a coloring process on a white map. FIG. 13 shows a white map as shown in FIG. 12 in which a closed region related to a building is selected and colored. In FIG. 13, since the colored region having a rounded shape in the closed region is colored, it is possible to give an impression of a glue like a watercolor painting. Then, as shown in FIG. 14, by coloring the shaded area in the closed area of the building, it is possible to give a stereoscopic effect as if the building was photographed with an aerial photograph. In this way, by performing the coloring process on the closed region having only the outline, it is possible to soften the sharp impression and obtain a more easily colored map. FIG. 15 shows the result of actually applying a coloring process to a white map as a gray scale image.

  In the example described above, the white map is colored, but in the case of such a topographic map such as a white map or survey map, the completed map is based on the current survey map in the development area and the design map based on the development / construction plan. This is effective for creating a so-called colored perspective diagram. Since these drawings are created as explanatory materials for the surrounding residents, they are particularly effective when coloring structures such as parks, buildings, roads, sabo dams, and flow paths in an easy-to-understand manner. In addition, in the case of a sketch of a residential area, it is also effective to create a material that explains the image at the time of new construction or reconstruction by coloring residences, gardens, planting, carports, roads, etc. in an easy-to-understand manner.

It is a system configuration figure concerning the embodiment concerning the present invention. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is explanatory drawing regarding a coloring process. It is a coloring process flow of a blank map. It is a processing flow regarding the setting of a colored region. It is a processing flow regarding the setting of a shadow area. It is a schematic diagram in the case of performing a coloring process on a white map. It is a schematic diagram in the case of performing a coloring process on a white map. It is a schematic diagram in the case of performing a coloring process on a white map. It is the example of an image which performed the coloring process on the white map.

Explanation of symbols

1 Coloring drawing creation device
10 CPU
11 RAM
12 ROM
13 Memory
14 display
15 Printer
16 Input section
17 Bus

Claims (6)

  A division processing unit that divides the drawing into closed regions surrounded by the contour line based on the drawing data including the contour line, a selection unit that selects a closed region to be colored among the divided closed regions, and a selected closed region. A region setting unit that generates a colored region by modifying the shape of the region and sets the colored region by shifting from the closed region, and a coloring processing unit that performs a coloring process based on the set colored region are provided. A coloring drawing creation apparatus characterized by the above.   The area setting means sets a shadow area based on the set coloring area and the closed area, and the coloring processing means performs a coloring process based on the set shadow area. Item 2. A colored drawing creating apparatus according to Item 1.   A coloring drawing creation method for coloring drawing data consisting of contour lines using a computer, dividing the drawing into closed regions surrounded by the contour lines based on the drawing data, and coloring among the divided closed regions Selecting a closed region to be generated, generating a colored region by deforming the shape of the selected closed region, setting the shifted region from the closed region, and performing a coloring process based on the set colored region Coloring drawing creation method.   4. The coloring drawing creation method according to claim 3, wherein a shadow area is set based on the set coloring area and the closed area, and a coloring process is performed based on the set shadow area. A program for functioning a coloring drawing creation device for coloring drawing data consisting of contour lines,
The colored drawing creation device,
Means for dividing the drawing into closed regions surrounded by the outline based on the drawing data comprising the outline;
Means for selecting a closed region to be colored among the divided closed regions;
Means for generating a colored region by deforming the shape of the selected closed region and setting the colored region by shifting from the closed region;
Means for performing a coloring process based on the set coloring area;
Program to function as.   The means for setting the coloring area sets a shadow area based on the set coloring area and the closed area, and the means for performing the coloring process performs the coloring process based on the set shadow area. The program according to claim 5, wherein the program is characterized by: