JP2011216027A - Color drawing creation apparatus, color drawing creation method, and color drawing creation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color drawing creation apparatus, a color drawing creation method, and a color drawing creation program capable of further shortening the working time with respect to coloring of a drawing.SOLUTION: A color drawing creation apparatus 10 includes a coloring-target area setting means 13, which sets a coloring target area 31 as a closed area in a coloring target drawing 30; a color-area setting means 14 which sets a color area 33 as a closed area in a color image 32; an area deforming means 15, which deforms the shape of the color area into the shape of a coloring target area; and a coloring processing means 16, which performs the coloring processing on the coloring target area on the basis of the deformed color area. The area deforming means divides the color area into a plurality of polygonal patches 41 and disposes points 52, that correspond to vertices 42 of respective polygonal patches in the coloring target area, to divide the coloring target area into a plurality of patches 51 and deforms the polygonal patches of the color area into shapes that correspond to patches of the coloring target area to thereby deform the shape of the color area into the shape of the coloring target area.

Description

  The present invention relates to a colored drawing creating apparatus, a colored drawing creating method, and a colored drawing creating program.

  The use of digital images by digital cameras, image input devices, etc. has begun to spread rapidly, including the generation of digital images by computers, and with the spread of output machines such as personal computers and inkjet color printers, the processing technology of digital images is also familiar. Has become popular as software.

  Processes such as the adjustment of light and darkness, shading, and color tone of the original image, partial cutout / paste, and connection of multiple images (panorama image creation) have already been put to practical use. Are often provided as software with a technique for coloring a digital image to be processed. As such a coloring processing technique, a technique is known in which a part of one image is cut out and is superimposed and colored on another image (see, for example, Patent Document 1).

JP 7-37066 A

  By the way, when the size of the image used for superimposition and the region to be colored are different, the operation points prepared in the entire frame of the image used for superimposition are superimposed and then deformed by an enlargement / reduction operation. However, in this case, work time is required for fine adjustment, and as a result, work time for coloring tends to be long.

  Therefore, an object of the present invention is to provide a colored drawing creation apparatus, a colored drawing creation method, and a colored drawing creation program that can further reduce the work time for coloring a drawing.

  The coloring drawing creation apparatus according to the present invention includes a coloring target region setting means for setting a coloring target region to be colored as a closed region in the coloring target drawing, and coloring in which the coloring region used for coloring the coloring target drawing is colored. Coloring area setting means for setting as a closed area in an image, area deforming means for deforming the shape of the coloring area into the shape of the coloring target area, and coloring processing means for performing coloring processing on the coloring target area based on the deformed coloring area And the area deforming means divides the coloring area into a plurality of polygon patches and arranges corresponding points for the vertices of each polygon patch in the coloring object area to divide the coloring object area into a plurality of patches. The shape of the colored region is changed to the shape of the coloring target region by changing the polygonal patch of the coloring region into the shape of the patch of the corresponding coloring target region.

  A coloring drawing creation method according to the present invention is a method for creating a coloring drawing in a coloring drawing creation apparatus including a coloring target region setting unit, a coloring region setting unit, a region deformation unit, and a coloring processing unit, and the coloring target region The setting unit sets the coloring target region as a closed region in the coloring target drawing to be colored, and the coloring region setting unit sets the coloring region to be used for coloring the coloring target drawing in the colored image. And the step of transforming the colored region into a plurality of polygonal patches, dividing the colored target region into a plurality of patches by arranging corresponding points for the vertices of each polygonal patch in the colored target region, Transforming the shape of the coloring region into the shape of the coloring target region by transforming the polygonal patch of the coloring region into the shape of the patch of the corresponding coloring target region; Colored processing means, characterized in that it comprises the steps of: coloring a coloring object region on the basis of the modified colored region.

  Further, the coloring drawing creation program according to the present invention is a computer that sets a coloring target region to be colored as a closed region in the coloring target drawing, and coloring the coloring region used for coloring the coloring target drawing. Colored area setting means for setting the applied colored image as a closed area, area deformation means for changing the shape of the colored area to the shape of the colored object area, and coloring the colored object area based on the deformed colored area The area deformation means divides the colored area into a plurality of polygon patches, and arranges corresponding points for the vertices of each polygon patch in the coloring target area, thereby providing a plurality of coloring target areas. By dividing the polygonal patch of the colored area into the patch shape of the corresponding colored area, the shape of the colored area is changed to the colored object. Deformed into a shape of band, and wherein the.

  In this configuration, when the coloring target region and the coloring region are set in the coloring target drawing and the coloring image, the shape of the coloring region is changed to the shape of the coloring target region set in the coloring target drawing, and then based on the deformed coloring region. To color the area to be colored. Therefore, even if the coloring target area set in the coloring target drawing and the coloring area set in the above image are different, by setting the coloring target area and the coloring area in the coloring target drawing and the coloring image, the coloring target It is possible to color the drawing. As a result, the time required for creating a colored drawing can be shortened.

  In the coloring drawing creation apparatus according to the present invention, the coloring area is changed with respect to the coloring target area by changing the correspondence between the vertex of the polygon patch on the peripheral edge of the coloring area and the corresponding point on the peripheral edge of the coloring target area. It is preferable to further include coloring state changing means for rotating the rotating state. Further, in the coloring drawing creation method according to the present invention, the coloring region is changed to the coloring target region by changing the correspondence between the vertex of the polygon patch on the periphery of the coloring region and the corresponding point on the periphery of the coloring target region. Preferably, the method further comprises a step of rotating with respect to. Furthermore, in the coloring drawing creation program according to the present invention, the computer performs coloring by changing the correspondence between the vertex of the polygon patch on the periphery of the coloring area and the corresponding point on the periphery of the coloring target area. It is preferable to make the region function as a coloring state changing unit that rotates the region with respect to the coloring target region.

  With this configuration, since the colored region can be rotated with respect to the coloring target region, a plurality of colored patterns can be realized based on one colored region.

  According to the present invention, it is possible to provide a colored drawing creation apparatus, a colored drawing creation method, and a colored drawing creation program that can further reduce the work time for coloring a drawing.

It is a functional block diagram of one embodiment of a colored drawing creating apparatus according to the present invention. FIG. 2A is a drawing showing an example of a coloring object drawing to be colored by the coloring drawing creation apparatus shown in FIG. FIG. 2B is a drawing showing an example of a colored image used for coloring the coloring object drawing shown in FIG. FIG.2 (c) is drawing which shows an example of the coloring drawing which colored a part of coloring object drawing shown to Fig.2 (a). It is drawing which shows an example of the triangular patch produced | generated with respect to the coloring area | region. It is drawing for showing the correspondence between the patch network of the coloring region and the corresponding patch network of the coloring target region. It is drawing which shows the correspondence before and behind the warping process of a coloring area | region. It is a schematic diagram which shows an example of the work window which a display part displays. It is a block diagram which shows the structure of the hardware of one Embodiment of the coloring drawing production apparatus shown in FIG. It is drawing which shows the flowchart of the coloring drawing preparation method in a coloring drawing preparation apparatus. It is drawing for demonstrating Example 1 of coloring by the coloring drawing preparation apparatus. It is drawing for demonstrating Example 2 of coloring by the coloring drawing preparation apparatus. It is drawing for demonstrating the principle of three-dimensional coloring.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

  FIG. 1 is a functional block diagram of an embodiment of a colored drawing creating apparatus according to the present invention. FIG. 2A is a drawing showing an example of a coloring object drawing to be colored by the coloring drawing creation apparatus shown in FIG. FIG. 2B is a drawing showing an example of a colored image used for coloring the coloring object drawing shown in FIG. FIG.2 (c) is drawing which shows an example of the coloring drawing which colored a part of coloring object drawing shown to Fig.2 (a).

  As shown in FIGS. 2 (a) to 2 (c), the coloring drawing creation apparatus 10 is configured to add another colored object region 31 in an arbitrary shape in the coloring object drawing 30 formed of a contour line. It is an apparatus for creating a colored drawing 34 by coloring based on a colored region 33 having an arbitrary shape in the colored image 32.

  As shown in FIG. 1, the colored drawing creating apparatus 10 should be an input unit 11 that receives various instructions from the user, drawing data of a plurality of drawings to be colored drawings, and colored images as functional components. A storage unit 12 that stores image data of a plurality of images and stores a program as application software, a coloring target region setting unit (coloring target region setting unit) 13 that sets a coloring target region 31 in the coloring target drawing 30, and coloring A coloring area setting unit (coloring area setting means) 14 for setting the coloring area 33 which is an area used for the coloring image 32, and an area changing part (area deformation means for changing the shape of the coloring area 33 into the shape of the coloring target area 31 15) A coloring processing unit (coloring processing means) 16 for coloring the coloring target region 31 using the modified coloring region 33, and coloring of the coloring target region 31 A display unit 18 for displaying colored state changing unit that changes the state (colored state changing means) 17, and the process or process result to the drawings and images or the like to indicate to the user.

  When the coloring target area setting unit 13 receives an instruction from the user to select one of the drawings stored in the storage unit 12 as the coloring target drawing 30, the drawing data of the selected coloring target drawing 30 is displayed. Is extracted from the storage unit 12 and displayed on the display unit 18 to the user. Furthermore, the coloring target area setting unit 13 sets the coloring target area 31 in the coloring target drawing 30 based on an instruction from the user. For this region setting, the coloring target region setting unit 13 includes a region dividing unit 13A and a region selecting unit 13B. The area dividing unit 13A receives an area designation from the user and divides the designated area as a closed area. The region selection unit 13 </ b> B receives a user instruction to select the closed region as the coloring target region 31, and sets the designated closed region as the coloring target region 31.

  When the colored region setting unit 14 receives an instruction from the user to select one of the colored images stored in the storage unit 12 as the colored image 32, the image data of the selected colored image 32 is received. Is extracted from the storage unit 12 and displayed on the display unit 18 to the user. Furthermore, the coloring area setting unit 14 sets the coloring area 33 in the coloring image 32 based on an instruction from the user. For this region setting, the coloring region setting unit 14 includes a region dividing unit 14A and a region selecting unit 14B. The area dividing unit 14A receives designation of the coloring area 33 from the user, and divides the designated area as a closed area. The area selection unit 14 </ b> B receives a user instruction to select the closed area as the colored area 33 and sets the designated closed area as the colored area 33.

  Here, the coloring target region setting unit 13 and the coloring region setting unit 14 have the region dividing units 13A and 14A and the region selecting units 13B and 14B, respectively, but may have a common region dividing unit and a region selecting unit. Good. In this case, the coloring target region setting unit 13 and the coloring region setting unit 14 perform region setting using a common region dividing unit and region selecting unit. In addition, the coloring target area setting unit 13 and the coloring area setting unit 14 receive an instruction from the user via the input unit 11.

  The region deforming unit 15 deforms the shape of the coloring region 33 into the shape of the coloring target region 31. The area deformation unit 15 colors the shape of the coloring area 33 using the patch net generation unit 15A that generates a patch net in the coloring target area 31 and the coloring area 33, and the patch net generated by the patch net generation unit 15A. A deformation processing unit 15B that deforms into the shape of the target region 31.

  The patch network generation unit 15 </ b> A generates a patch network 40 in the coloring region 33 and generates a corresponding patch network 50 corresponding to the patch network 40 in the coloring target region 31. Such a patch network is generated as follows, for example.

  First, a plurality of sample points 42 are arranged on the colored image 32 and the colored image 32 is divided into Delaunay. At this time, the patch net generation unit 15 </ b> A arranges the sample points 42 on the peripheral edge 33 a that is the outer edge line (boundary line) of the coloring region 33. Next, the patch network generation unit 15A determines whether or not it is inside the colored region 33 that is a closed region, removes the triangular patch (polygonal patch) 41 outside the colored region 33, and then creates a patch network generation unit 15A. However, as shown in FIG. 3, a patch network 40 that is a triangular patch network is generated in the colored region 33. The sample point 42 corresponds to each vertex of the plurality of triangular patches 41 that constitute the patch network 40. Therefore, hereinafter, each vertex of the triangular patch 41 is also referred to as a vertex 42.

  When the patch net generation unit 15A generates the patch net 40 in the coloring area 33, the corresponding point 52 corresponding to the vertex 42 of each triangular patch 41 is set in the coloring target area 31, and the corresponding patch net 50 is set in the coloring target area 31. Generate. The generation of the corresponding patch network 50 can be the same as the generation method of the patch network 40. That is, based on the corresponding points 52 arranged, Delaunay division of the coloring target drawing 30 is performed, the inside / outside of the coloring target region 31 is determined, and the patch net 50 is generated in the coloring target region 31.

  FIGS. 4A and 4B are diagrams for illustrating a correspondence relationship between the patch network 40 generated by the patch network generation unit 15 </ b> A and the corresponding patch network 50. The numbers in square brackets in FIG. 4 (a) are the vertex numbers of each vertex 42 given for convenience of explanation. The numbers in square brackets in FIG. 4B are the vertex numbers of the vertices 42 corresponding to the corresponding points 52. The colored region 33 shown in FIG. 4A is schematically circular for the sake of explanation. FIG. 4B is a schematic diagram of the coloring target region 31. As shown in FIG. 4A and FIG. 4B, in the corresponding points 52 in the coloring target region 31, the relationship between the vertex numbers of the vertices 42 and 42 corresponding to the adjacent corresponding points 52 and 52 is as follows. This is the same as the relationship between the vertex numbers of the adjacent vertices 42 and 42 in FIG.

  When the patch network generation unit 15A forms the patch network 40 in the coloring region 33 and places the corresponding points 52 in the coloring target region 31, the deformation processing unit 15B and each vertex 42 of the triangular patch 41 and the coloring target region 31 The enlargement / reduction information between the plurality of vertices 42 and between the plurality of corresponding points 52 is extracted from the arrangement relationship with the corresponding points 52. The deformation processing unit 15B deforms the colored region 33 into the shape of the coloring target region 31 by a warping process.

  Here, the concept of shape deformation by the warping process of the present embodiment will be described. In the present embodiment, a spring model is adopted in which each side of each triangular patch 41 generated by the patch network generation unit 15A is configured by a spring. Each triangular patch 41 is obtained by obtaining the equilibrium state of the spring model based on the stiffness equation established for each side, where f is the force applied to each side, u is the spring extension, and k is the spring constant. The shape of the patch 51 (see FIG. 4) constituting the corresponding patch network 50 is changed. Since the spring constant represents the rigidity of the triangular patch 41, the deformation state of the colored region 33 can be adjusted by adjusting the spring constant according to the position in the colored region 33. For example, by making the spring constant on the inner side of the colored region 33 larger than the spring constant in the vicinity of the peripheral edge 33a, the deformation on the inner side of the colored region 33 is suppressed, and the deformation amount of the peripheral portion is increased.

  FIG. 5 is a diagram showing the correspondence before and after the warping process of the colored region 33. FIG. 5A in FIG. 5 shows an example of the colored region 33 before processing, and corresponds to the shape of the colored region 33 in FIG. FIG. 5B is a diagram in which the colored region 33 shown in FIG. 5A is transformed into the shape of the coloring target region 31 in FIG. 4B. A patch (hatched portion in FIG. 5A) 41 defined by a vertex number 5-6-1 in FIG. 5A is a patch defined by a vertex number 5-6-1 in FIG. 5B. (The hatched portion in FIG. 5B) is deformed. Since the triangular patch 41 is represented by a spring model as described above, the deformed triangular patch 41 has a partially curved line as shown in FIG. 5B due to the spring constant and the like. In some cases.

  Returning to FIG. 1, the configuration of the drawing creation apparatus 10 will be further described. The coloring processing unit 16 maps the texture of the original triangular patch 41 to the triangular patch 41 deformed by the deformation processing unit 15B, and uses the deformed colored region 33 as a pasted image to be pasted on the coloring target region 31. Is attached to the coloring target region 31, thereby coloring the coloring target region 31.

  Pixel matching processing is performed in texture mapping between the triangular patch 41 before deformation and the patch after deformation. At this time, pixel information corresponding to each pixel included in the patch after deformation is appropriately acquired based on a calculation result obtained by linear interpolation of the pixel information of the colored image 32. In addition, the coloring processing unit 16 may have a function of performing a blending process such as a blurring process on the boundary region in order to suppress a sudden change in color inside and outside the peripheral edge 31a of the coloring target region 31. .

  The coloring state changing unit 17 rotates the coloring region 33 with respect to the coloring target region 31. The coloring state changing unit 17 receives, from the user, the correspondence between the vertexes 42 on the peripheral edge 33a of the set triangular patch 41 and the corresponding points 52 on the peripheral edge 50a of the corresponding patch network 50 in the deformation processing unit 15B. By changing the rotation angle information based on the rotation angle information, the coloring region 33 is rotated with respect to the coloring target region 31.

  FIG. 6 is a schematic diagram illustrating an example of a work window displayed on the display unit 18. As shown in FIG. 6, the work window 60 includes a work object display area 61 for displaying work objects such as the coloring object drawing 30 and the coloring image 32 for coloring work, and various kinds of work area designation tools, brushes, and the like. The tool selection area 62 for selecting a tool and a menu bar at the top of the work window 60 are used to display a list of the coloring target drawing 30 and the coloring image 32 selected from the storage unit 12, and appropriately display them. A work target selection area 63 that can be selected for activation, a state change instruction area 64 for changing a coloring state, and a thumbnail area 65 for displaying an active work target as a thumbnail are provided. The work target selection area 63 may have a selection function from the storage unit 12 such as the coloring target drawing 30 and the coloring image 32. The thumbnail area 65 displays a list of brush functions and the like, and can be switched to a selectable display screen.

  When the user selects the coloring target drawing 30 or the like as the work target using the work target selection area 63, the selected drawing or image is displayed in the work target display area 61 and becomes active. As a result, the user can perform area designation using a tool for area designation on the coloring object drawing 30 or the colored image 32 displayed in the work object display area 61. In addition, it is possible to input a rotation angle for changing the coloring state by using a rotation angle designation unit for changing the rotation angle shown in the state change instruction area 64. In FIG. 6, it is assumed that the above-mentioned area is displayed in one work window. However, another window or a toolbar may be appropriately displayed by a function selection menu or the like.

  FIG. 7 is a block diagram showing a hardware configuration of an embodiment of the coloring drawing creation apparatus shown in FIG. The coloring drawing creation device 10 is a so-called computer device, and includes, as physical components, an input unit 11 having an input device such as a mouse and a keyboard, a storage unit 12 for storing various data and application software, and a display unit 18 such as a display. A printer 19 that outputs processing results, a CPU 20 that processes logical operations, a RAM 21 that temporarily stores data and programs necessary for logical operations, a ROM 22 that stores programs and the like for executing logical operations, and a CD-ROM A recording medium reading unit 23 for reading various computer-readable recording media such as DVD and DVD, and a communication unit 24 having a data communication function. Each of these components is connected by a transmission / reception bus 25 so that data can be transmitted and received. Various drawing data and image data can be input to the colored drawing creating apparatus 10 using the recording medium reading unit 23 or the communication unit 24. Each function of the colored drawing creating apparatus 10 described with reference to FIG. 1 is realized by operating a colored drawing creating program 80 installed as application software in a computer.

  Next, with reference to FIG. 8, the coloring drawing creation method using the coloring drawing creation apparatus 10 will be described. FIG. 8 is a diagram showing a flowchart of a colored drawing creation method in the colored drawing creation apparatus 10.

  First, the coloring drawing creating apparatus 10 performs a coloring target drawing display step S11, a region dividing step S12, and a region selecting step S13 as a coloring target region setting step S10 for setting the coloring target region 31 in the coloring target drawing 30. Specifically, based on a user's selection instruction for the coloring target drawing 30, the coloring target region setting unit 13 selects and displays the selected coloring target drawing 30 from the drawing data stored in the storage unit 12. It displays on the part 18 (display step S11). Next, the coloring target area setting unit 13 divides the specified area into closed areas based on an instruction for specifying the area from the user with respect to the coloring target drawing 30 (area dividing step S12). Further, the coloring target area setting unit 13 selects the designated closed area based on the selection instruction of the closed area from the user, and sets it as the coloring target area 31 (area selection step S13).

  Next, the colored drawing creating apparatus 10 performs a display step S21 of the colored image 32, a region dividing step S22, and a region selecting step S23 as a colored region setting step S20 for setting the colored region 33 in the colored image 32. Specifically, when the coloring area setting unit 14 accepts the selection of the coloring image 32 by the user, the coloring image 32 is displayed on the display unit 18 based on the image data stored in the storage unit 12 (display step). S21). The coloring area setting unit 14 divides the designated area into closed areas based on an area designation instruction from the user (area division step S22). Next, the colored area setting unit 14 selects the designated closed area based on the selection instruction of the closed area from the user, and sets it as the colored area 33 (area selection step S23).

  When the coloring area setting unit 14 sets the coloring area 33, the coloring drawing creation apparatus 10 performs a patch network generation step S31 and a deformation processing step S32 as the area deformation step S30. Specifically, the region deforming unit S15 generates the patch network 40 for the colored region 33, sets the corresponding point 52 corresponding to the vertex 42 of the triangular patch 41 in the coloring target region 31, and sets the corresponding patch network 50. (Patch network generation step S31). Next, the region deforming unit 14 deforms the shape of the colored region 33 into the shape of the coloring target region 31 by a warping process (deformation processing step S32).

  Subsequently, the colored drawing creating apparatus 10 performs a coloring process step S40. That is, the coloring processing unit 16 applies a texture to each patch of the colored region 33 that has been deformed to form a pasted image, and then pastes the pasted image to the target color region 31 to color the target color region 31. To do. At this time, the coloring processing unit 16 may perform blurring processing or the like near the boundary of the coloring target region 31.

  Thereafter, when the coloring state changing unit 17 receives an input of the rotation angle from the user (YES in S50), the coloring drawing creating apparatus 10 performs the coloring state changing step S51. That is, the coloring state changing unit 17 determines the correspondence between the vertex 42 on the periphery 33a of the coloring region 33 and the corresponding point 52 on the periphery 31a of the coloring target region 31 according to the input rotation angle. change. After the change, the process returns to the deformation process step S32 to perform coloring. As shown in FIG. 8, after the coloring process step S40, if the input of the rotation angle from the user is not accepted (NO in S50), the coloring work is ended.

  In the drawing coloring method using the coloring drawing creation apparatus 10 of the present embodiment, the user can set an arbitrary closed region as the coloring target region 31 in the coloring target drawing 30 and color from the coloring image 32. A desired area desired to be used for coloring the target area 31 can be arbitrarily set as the colored area 33. When the above two areas are set, the coloring drawing creation apparatus 10 automatically transforms the shape of the coloring area 33 into the shape of the coloring target area 31, and the pasted image obtained by texture mapping is changed to the coloring target area 31. Can be pasted.

  As described above, since the user selects the coloring target region 31 and the coloring region 33, the coloring region 33 having an arbitrary shape can be automatically deformed and colored to the coloring target region 31 having an arbitrary shape. The time required for coloring can be shortened. In addition, since the coloring area 33 is automatically deformed into the shape of the coloring target area 31, it is possible to arbitrarily select an area having a desired color tone and texture from the coloring image 32. As a result, it is easy to finish a colored drawing with a desired color tone and texture in a short time.

  Further, for example, by using a colored image that has been created by requesting a painter or the like in advance as the colored image 32, the color usage used by the painter or the like can be applied to the coloring of the coloring object drawing 30. it can. Therefore, it is possible to significantly reduce the work time as compared with the case where the user himself / herself newly creates the colored drawing 34 in consideration of color usage.

  For example, a watercolor-style style may be used in a city plan, a completed construction plan such as a new house or a renovation of a house, and the like. In this case, it takes work time to newly create a color tone, texture, and the like, but there is a case where presentation of a completed predicted drawing or the like is urgently required. On the other hand, in the coloring drawing creation apparatus 10, by setting the coloring target area 30 and the coloring area 33, the coloring area 33 can be automatically colored with the color tone and texture. The creation work can be greatly shortened. In addition, as described above, a desired color tone can be realized.

  FIG. 9 is a diagram for explaining a coloring example 1 by the coloring drawing creation apparatus 10. FIG. 9A shows an example of the colored image 32. This colored image 32 was previously prepared by requesting the painter. FIG. 9B shows an example of the coloring object drawing 30. In the coloring object drawing 30 used, a person is represented by an outline. FIG. 9C is a coloring drawing in which the coloring object drawing 30 of FIG. 9B is colored using the colors used in FIG. 9A. As shown in FIGS. 9A to 9C, even if the color image 32 and the coloring object drawing 30 are different in size and shape, they can be easily colored. Further, for example, the color included in the colored image 32 may be understood from applying the color of the boot in FIG. 9A to the back of the person in FIG. 9B. For example, an arbitrary region of the coloring object drawing 30 can be colored using them.

  FIG. 10 is a view for explaining a coloring example 2 by the coloring drawing creating apparatus 10. FIG. 10A shows an example of the colored image 32. As in the case of the first embodiment, the colored image 32 is prepared by requesting a painter in advance. FIG. 10B shows an example of the coloring object drawing 30. As shown in FIG. 10B, the car is represented by a contour line. FIG. 10C is a diagram after the coloring object drawing 30 of FIG. 10B is colored using the colors used in FIG. 10A. Similarly to the case of the first embodiment, in the case of the second embodiment, even if the size and shape of the colored image 32 and the coloring object drawing 30 are different, the coloring can be easily performed.

  In addition, as shown in FIG. 1, when the coloring drawing creation apparatus 10 includes the coloring state changing unit 17, the coloring region 33 can be rotated with respect to the coloring target region 31 after coloring. . In this case, different colored states can be realized using the same colored region 33. For example, if 360 sample points 42 are arranged at substantially equal intervals on the peripheral edge 33 a of the coloring region 33, 360 corresponding points 52 are also arranged on the peripheral edge 31 a of the coloring target region 31. Therefore, one colored area 33 is used by shifting the correspondence between the apex on the peripheral edge 33a of the colored area 33 and the corresponding point 52 on the peripheral edge 33a of the coloring target area 31 one by one for each rotation angle. Thus, 360 colored states can be realized. As a result, the range of selection of materials for coloring is widened, and the user can easily realize various shades.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. The coloring state changing unit 17 rotates the coloring region 33. That is, the coloring state changing unit 17 has been described as functioning as a rotation processing unit that rotates the coloring region 33.

  However, the coloring state changing unit 17 may have a function as an enlargement / reduction adjustment unit that enlarges or reduces the coloring region 33 in addition to the rotation function or instead of the rotation function. The enlargement / reduction adjustment unit enlarges / reduces the size of the closed region divided by the region division unit 14A based on a user instruction. For example, when the size of the coloring region 33 initially designated by the user is larger than the coloring target region 31, the amount of pixels to be thinned out increases due to the deformation of the coloring region 33. In this case, for example, by reducing the color region 33 by the enlargement / reduction adjustment unit, pixel thinning is suppressed, so that the color of the color region 33 in the color image 32 can be more reflected. In order to reflect the hue of the colored region 33 more faithfully, for example, a contour line is set in the colored region 33, and the contour region is appropriately selected as a boundary region according to an instruction from the user. It is possible to change the size of 33.

 Furthermore, in the above-described embodiment, coloring on a two-dimensional plane has been described. However, a function for performing three-dimensional coloring with arbitrary curved surface information added to the coloring target region 30 is added to the drawing creating apparatus 10. You can also. This three-dimensional coloring method will be described. Arbitrary curved surface information is added after the corresponding patch network 50 corresponding to the patch network 40 of the coloring region 33 is formed for the coloring target region 30.

  FIG. 11 is a diagram for explaining the principle of three-dimensional coloring to which curved surface information is added. In FIG. 11, for convenience of explanation, a line connecting corresponding points 52 in the coloring target region 31 is indicated by a one-dot chain line in order to distinguish from other lines. Hereinafter, a three-dimensional coloring method to which curved surface information is added will be described.

  As shown in FIG. 11, an arbitrarily shaped curved surface 90 is superimposed on the coloring target region 31. Then, while maintaining the coordinates of the corresponding point 52 on the peripheral edge 31 a of the coloring target region 31, the corresponding point 52 inside the coloring target region 31 is projected onto the curved surface 90. A point where the corresponding point 52 is projected onto the curved surface 90 is referred to as a projection point 53. Thereby, height information corresponding to the shape of the specified arbitrary curved surface 90 is added to the corresponding point 52 inside the coloring target region 31, and the patch 51 constituting the patch net 50 formed in the coloring target region 31 is added. Coordinates are converted. And the warping process of the coloring area | region 33 is implemented based on the positional information on the corresponding point 52 on the periphery 31a of the coloring object area | region 31, and the projection point 53 projected on arbitrary curved surface shapes. As a result, the colored region 33 can be deformed into a patch network formed by the corresponding points 52 and the projection points 53 on the peripheral edge 31a, in which the patch network 50 is expanded three-dimensionally. Since the line connecting the corresponding point 52 on the peripheral edge 31a of the coloring target region 31 and the projection point 53 on the curved surface 90 does not match the shape of the curved surface 90, the curve calculation is performed so as to be a smooth curved surface. Implement as appropriate.

  The coloring process after the warping process is the same as that in the above embodiment. That is, the texture of the original triangular patch 41 is mapped to the deformed triangular patch 41 by the warping process, and the deformed colored region 33 is used as a pasted image to be pasted on the coloring target region 31. Then, by pasting this pasted image on the coloring target region 31, the coloring target region 31 is colored three-dimensionally. Thereby, three-dimensional coloring in which curved surface information is added to the coloring target region 31 is possible.

  In FIG. 11, the curved surface 90 is illustrated by bending the plane into a convex shape, but the shape of the curved surface 90 is not limited to this, and may be a spherical shape, for example. In addition, the curved surface 90 used for three-dimensional coloring may have a plurality of curved surface shapes prepared in advance, or may be designated by an expression representing the curved surface 90 as appropriate.

  In the embodiment shown in FIG. 1, the coloring state changing unit 17 is described as being provided. However, the coloring state changing unit 17 is not necessarily provided.

  In addition, the Delaunay division is used when the patch network 40 is generated in the area deforming unit 15, but the division method into patches is not limited to the Delaunay division. Further, the shape of the patch is not limited to a triangle, and may be a polygonal patch.

  The present invention can be applied when coloring various drawings. For example, in the development / construction plan and the creation of a completed expected drawing of a structure such as a residence, the design drawing is made of a contour line prepared in advance. It can be suitably applied to coloring. It can also be applied to the creation of image diagrams of clothing, toys and household goods, and simulations of various designs.

  DESCRIPTION OF SYMBOLS 10 ... Coloring drawing production apparatus, 13 ... Coloring object area | region setting part (coloring object area | region setting means), 14 ... Coloring area setting part (coloring area setting means), 15A ... Patch net production | generation part, 15B ... Deformation processing part, 16 ... Coloring processing section (coloring processing means), 17 ... coloring state changing section (coloring state changing means), 30 ... coloring object drawing, 31 ... coloring object area, 32 ... colored image, 33 ... colored area, 33a ... peripheral edge, 34 ... Colored drawing, 40 ... patch network, 41 ... triangular patch (polygonal patch), 42 ... sample point, vertex, 50 ... corresponding patch network (patch network), 50a ... peripheral edge, 51 ... patch, 52 ... corresponding point.

Claims (6)

A coloring target area setting means for setting a coloring target area to be colored as a closed area in the coloring target drawing;
A colored region setting means for setting a colored region used for coloring the drawing to be colored as a closed region in a colored image that has been colored;
A region deforming means for transforming the shape of the coloring region into the shape of the coloring target region;
A coloring processing means for performing a coloring process on the coloring target area based on the transformed colored area;
With
The region deformation means includes
The coloring area is divided into a plurality of polygon patches, and corresponding points for the vertices of the polygon patches are arranged in the coloring target area to divide the coloring target area into a plurality of patches, and the coloring area has Transforming the shape of the colored region into the shape of the coloring target region by transforming the polygonal patch into the shape of the patch of the corresponding coloring target region,
A coloring drawing creation apparatus characterized by the above.   Coloring that rotates the coloring area with respect to the coloring target area by changing the correspondence between the vertex of the polygonal patch on the peripheral edge of the coloring area and the corresponding point on the peripheral edge of the coloring target area The colored drawing creating apparatus according to claim 1, further comprising a state changing unit. A method for creating a coloring drawing in a coloring drawing creation device comprising a coloring target area setting means, a coloring area setting means, an area transformation means and a coloring processing means,
The coloring target area setting means sets the coloring target area as a closed area in the coloring target drawing to be colored, and
The step of setting the coloring region to be used for coloring the drawing to be colored in the colored image by the coloring region setting means;
The area deforming means divides the coloring area into a plurality of polygonal patches and arranges corresponding points for the vertices of the polygonal patches in the coloring target area to divide the coloring target area into a plurality of patches. Transforming the shape of the coloring region into the shape of the coloring target region by transforming the polygonal patch of the coloring region into the shape of the patch of the corresponding coloring target region;
The coloring processing means coloring the coloring target area based on the transformed coloring area;
The coloring drawing creation method characterized by comprising.   Rotating the coloring area with respect to the coloring target area by changing a correspondence relationship between the vertex of the polygonal patch on the peripheral edge of the coloring area and the corresponding point on the peripheral edge of the coloring target area. The coloring drawing creation method according to claim 1, further comprising: Computer
A coloring target region setting means for setting a coloring target region to be colored as a closed region in the coloring target drawing;
A colored region setting means for setting a colored region used for coloring of the coloring object drawing as a closed region in a colored image that has been colored;
Area deformation means for transforming the shape of the coloring area into the shape of the coloring target area; and coloring processing means for performing a coloring process on the coloring target area based on the deformed coloring area;
Function as
The region deformation means includes
The coloring area is divided into a plurality of polygon patches, and corresponding points for the vertices of the polygon patches are arranged in the coloring target area to divide the coloring target area into a plurality of patches, and the coloring area has Transforming the shape of the colored region into the shape of the coloring target region by transforming the polygonal patch into the shape of the patch of the corresponding coloring target region,
A coloring drawing creation program characterized by that.   The computer changes the correspondence between the vertex of the polygonal patch on the periphery of the coloring region and the corresponding point on the periphery of the coloring target region, thereby changing the coloring region to the coloring target region. 6. The coloring drawing creation program according to claim 5, wherein the coloring drawing creation program functions as coloring state changing means for rotating the coloring drawing.