JPH0737083A - Device and method for processing image - Google Patents

Abstract

PURPOSE:To provide a device and a method for processing images for generating effects by which recessed and projecting parts look like being in source image data. CONSTITUTION:The image data for masking the image data of a processing object are stored in an image memory 12 and the direction of light projected on the recessed and projecting parts at the time of generating the recessed and projecting parts in the image data of the processing object is set by a direction setting part 15. Also, the degree of inclination of the recessed and projecting parts is set by a recessed and projecting degree setting part 16. Then, the color information of the part of the image data of the processing object corresponding to the image data for masking is replaced based on the direction set by the direction setting part 15 and the degree of inclination set by the recessed and projecting degree setting part 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus and method, and more particularly, to an image processing apparatus and method for converting color original image data into image data having irregularities.

[0002]

2. Description of the Related Art Conventionally, in order to make a two-dimensional image look more three-dimensional, it is known that the image is subjected to relief processing to give a feeling of unevenness. This relief processing is to convert the image into an image like a relief of engraving which expresses the image just by using the original image data of monochrome and by shading the outline portion of the image.

[0003]

However, the relief processing described above has the following problems.

The image to be relief-processed is limited to a monochrome original image, and an unevenness is obtained by shading the outline of the image. For this reason, for example, it is not possible to obtain an image having an unevenness feeling, for example, an embossed image, for an image such as a color photograph.

The present invention has been made in view of the above-mentioned conventional example, and an object of the present invention is to provide an image processing apparatus and method for producing an effect such that an original image data has a concavo-convex portion.

Further, the present invention provides an image processing apparatus and method for synthesizing a plurality of original image data according to the brightness of mask image data, and further producing an effect such that a concavo-convex portion is generated in the synthesized image. Is intended.

[0007]

In order to achieve the above object, the image processing apparatus of the present invention has the following configuration. That is, a storage unit that stores masking image data for masking the image data to be processed, and a direction setting unit that sets the direction of the light that hits the uneven portion when the uneven portion is generated in the image data to be processed. An inclination setting means for setting the degree of inclination of the concave-convex portion, and color information of a portion of the image data to be processed corresponding to the mask image data, and the inclination set by the direction setting means. Replacement means for performing replacement based on the inclination degree set by the setting means.

In order to achieve the above object, the image processing method of the present invention comprises the following steps. That is, it is an image processing method for processing image data to be processed, wherein image data for a mask for masking each of a plurality of image data to be processed is input, and each image data is converted into the respective image data by the image data for a mask. A step of synthesizing the plurality of image data according to the set brightness, a step of setting a direction of light for generating uneven portions in the plurality of image data to be processed, and a degree of inclination of the uneven portion And a step of replacing the color information of a portion of the image data to be processed, which corresponds to the mask image data, based on the set direction and the set inclination degree.

[0009]

With the above structure, the masking image data for masking the image data to be processed is stored, and when the unevenness is generated in the image data to be processed, the direction of the light hitting the unevenness is set. . Then, the degree of inclination of the uneven portion is set, and the color information of the portion of the image data to be processed corresponding to the mask image data is set to
Replacement is performed based on the set direction and inclination. Thereby, for example, it is possible to generate an embossing effect in the original image data of color that causes an uneven portion that occurs when embossing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an example of the arrangement of an image processing apparatus according to the first embodiment of the present invention.

In FIG. 1, reference numeral 1 is a control processor unit (hereinafter referred to as "CPU"), which controls the entire apparatus of the first embodiment. 2 is a CPU memory, for example RA
It is composed of M, ROM, etc., and stores a program for embossing processing of this embodiment and parameters necessary for various processing. The CPU 1 executes processing according to the program stored in the CPU memory 2. A CPU interface unit (hereinafter referred to as CPU-I / F) 3 is connected to a command input device such as a keyboard 20 and a pointing device 21. A CPU bus 4 has three buses, an address bus, a data bus and a control bus. 5 is an image data interface unit (I / F)
For example, an image input device such as a scanner 22 or an image output device such as a film recorder or a printer 23 is connected, and image data obtained by reading an original image from the image input device or the like is input or processed. The subsequent image data is output to the image output device.

Image memories 6 to 12 are, for example, 8
Image memory 6 with data width of (bit / pixel)
And 9 indicate the red component (R) of the image data in the image memory 7
And 10 store the green component (G), and the image memories 8 and 11 store the blue component (B). Reference numeral 12 denotes an image memory M that stores a mask image that is embossing shape data. A video bus 13 connects the image memories 6 to 11 with each other, a video controller 14, which will be described later, a direction setting unit 15, an unevenness degree setting unit 16, and the like. Reference numeral 14 denotes a video controller, which inputs, for example, 24 (bit / pixel) image data via the video bus 13 and generates and outputs a video signal. The video signal output by the video controller 14 is output to a display unit 24 such as a CRT and used for monitoring an image showing before and after the embossing process.

Reference numeral 15 denotes an embossing direction setting unit which sets from which direction the uneven portion is exposed to light. Reference numeral 16 denotes an embossing unevenness degree setting unit that sets the inclination of the rising of the edge portion of the unevenness. An embossing unit 17 performs embossing processing on the input image data using the parameters obtained by the embossing direction setting unit 15 and the embossing unevenness setting unit 16. 18 is an image memory controller, CP
Image memory 6 synchronized with U1 and embossing unit 17
Are used to control ~ 12 and are connected to the CPU bus 4.

In the following description, the address (x, y)
Image data is represented by A (x, y), and luminance data Ai (x, y) corresponding to RGB colors are represented by AR (x, y), AG (x, y), AB (x), respectively. , Y)
Is written. Further, if the data width of the brightness data Ai (x, y) is, for example, 8 bits, the brightness data of each color is represented by 256 gradations from the minimum brightness “0” to the maximum brightness “255”.

FIG. 2 is a flowchart showing an example of embossing processing in the image processing apparatus of the first embodiment. A control program for executing this processing is stored in the CPU memory 2.

First, in step S1, original image data is input. For example, by using the pointing device 21 or the like connected to the CPU-I / F 3,
The operator gives the CPU 1 an image input command. As a result, a command is output from the CPU 1, the color original image is read by the scanner 22 or the like, and the image data I / F 5 is read.
And via the CPU bus 4 are stored in the image memories 6 to 8 according to the color components. Next, in step S2, a mask image is input. Similar to step S1, this is an instruction to input a mask image having an embossed pattern and is input from an image input device such as the scanner 22. This mask image may be a binary image or a floor image. Monochrome image data having a tone may be used. This mask image data is stored in the image memory M12.

Next, in step S3, the keyboard 20
The CPU 1 causes the embossing direction setting unit 1
5 is operated to set from which direction the light is applied to the unevenness obtained by the embossing process. Specifically, the direction setting unit 15 to the video bus 13 and the video controller 14
The menu screen shown in FIG. 3 is displayed on the display unit 24 or the like via. The operator is the pointing device 21.
Specify the direction by clicking on a point on the menu, etc. For example, if the point 30 is clicked in FIG. 3, the light irradiates the uneven portion in the direction from the point 31 to the point 30 on the plane. The parameters thus obtained are stored in the CPU memory 2. This parameter means the shift direction of the mask position in step S5 described later.

Next, in step S4, the keyboard 20
In response to an instruction from the above, the CPU 1 operates the embossing unevenness degree setting unit 16 to set the rising slope of the edge portion of the unevenness obtained by the embossing process. Specifically, the unevenness degree setting unit 16 displays the menu screen shown in FIG. 4 on the display unit 24 via the video bus 13 and the video controller 14. In this state, the operator clicks one point on the menu using the pointing device 21 or the like to set the degree of unevenness. For example,
Point 40 or point 41 in FIG. 4 is selected. According to this selection, the inclination as shown in FIG. 5 is set.

In FIG. 5, reference numeral 50 indicates the inclination of the edge of the concave-convex portion when the point 40 in FIG. 4 is designated. In the case of this point 40, the inclination becomes relatively smooth. On the other hand, when the point 41 in FIG. 4 is designated, the inclination of the edge becomes steep as indicated by 51 in FIG. The embossing unevenness setting parameters thus obtained are stored in the CPU memory 2. This unevenness setting parameter is set in step S described later.
5 means the shift amount of the mask position. That is,
The larger the shift amount is, the smoother the edge is, that is, the smaller the unevenness is. On the contrary, the smaller the shift amount, the steeper the edge and the greater the degree of unevenness.

Next, in step S5, the shift difference calculation of the mask image is performed using the mask position shift direction and magnitude (concavity / convexity) set in steps S3 and S4. . The embossing processing unit 17
The mask image data stored in the image memory M12 is read out and the following calculation is performed. That is, assuming that the mask image data is M (x, y) and the shift amount (light incident direction and unevenness) is (x1, y1), the calculation result D (x, y) at the point (x, y) is

[0022]

## EQU1 ## D (x, y) = {M (x, y) -M (x + x1, y + y1)} / n Where n = constant (eg, 5) and x
1, y1 can take positive and negative values depending on the direction of light.

The output result serves as a brightness changing portion given to the original image. In other words, it can be said that the amount represents the unevenness of the embossing process. The result is stored in the CPU memory 2.

Next, in step S6, the result of the calculation obtained in step S5 is added to the original image to give a feeling of unevenness. The embossing processing unit 17 reads the original image data Ai stored in the image memories 6 to 8 and the above-mentioned D data stored in the CPU memory 2 and performs the following calculation.

The original image is Ai (x, y) and the output image is Oi.
If (x, y),

[0026]

## EQU00002 ## Oi (x, y) = Ai (x, y) + D (x, y). The result is stored in the image memories 9-11.

Next, in step S7, the CPU 1 determines whether or not processing has been performed on all screens. When the process for all screens is not completed, the process returns to step S5,
If the processing has been completed for all screens, all the processing is completed.

In this way, the image memories 9 to 11 store the embossed images corresponding to the respective color components of the original image.

Incidentally, step S3 and step S of this embodiment.
In FIG. 4, the operator sets the direction and size of the mask position shift using the pointing device 21, but the present invention is not limited to this and, for example, is set by inputting from the keyboard 20. May be. In this case, for example, as shown in the present embodiment, the shift amount (x, y) may be directly input as a numerical value (positive or negative) from the keyboard 20.
In this way, it is possible to set the shift direction and magnitude at once.

As described above, according to the first embodiment,
There is an effect that image data having unevenness can be obtained from a color original image. [Second Embodiment] Next, an image processing apparatus according to a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 6, the light / dark setting unit 19 sets a light portion and a dark portion of image data. FIG. 7 is a flowchart showing an example of embossing processing in the image processing apparatus of the second embodiment. The control program for executing this processing is CPU.
It is stored in the memory 2.

First, in step S11, original image data is input. For this, the operator inputs the first image data to the CPU 1 by using, for example, the pointing device 21 or the like connected to the CPU-I / F 3. As a result, a command is output from the CPU 1, the color original image is read by the scanner 22 or the like, and is stored in the image memories 6 to 8 via the image data I / F 5 and the CPU bus 4 in accordance with the color component. . This is image 1. Next, in step S12, similarly to step S11, an image 2 different from the image 1 is input and stored in each of the image memories 9 to 11 in accordance with each color component.

Next, in step S13, a mask image is input in the same manner as in step S11 or step S12 described above. Similar to step S1, this is an instruction to input a mask image having an embossed pattern and is input from an image input device such as the scanner 22. This mask image may be a binary image or a floor image. Monochrome image data having a tone may be used. This mask image data is stored in the image memory M12.

Next, in step S14, the keyboard 2
In response to an instruction from 0 or the like, the CPU 1 operates the embossing lightness / darkness setting unit 15 so that which of the original images input in step S11 and step S12 corresponds to the light portion of the mask image or corresponds to the dark portion. Or set.
That is, in the subsequent operation, the image 1 and the image 2 are combined, and this image is combined using the mask data,
The image 1 and the image 2 are added according to the brightness of the mask data. In that case, which image is to be assigned to the bright part is determined.

Specifically, the CPU 1 operates the embossing brightness setting section 19 to display the menu shown in FIGS. 8A and 8B on the display section 24 via the video bus 13 and the video controller 14. . In the initial setting, FIG. 8 (A)
The image 1 shown in FIG. 8 is set in the bright area, and the image 2 shown in FIG. 8B is set in the dark area. When the reverse setting is desired, the operator can switch the light and dark by using the pointing device 2 or the like and clicking the "bright" or "dark" portion of the menu screen.

Next, in step S15, the embossing direction setting unit 15 is operated to set from which direction the light will hit the unevenness obtained by the embossing process. Since this specific operation method is the same as step S3 in FIG. 2 described above, the description thereof will be omitted.

Next, in step S16, the keyboard 2
In response to an instruction from 0 or the like, the CPU 1 operates the embossing unevenness degree setting unit 16 to set the rising slope of the edge portion of the unevenness obtained by the embossing process. Since this specific operation is the same as step S4 in FIG. 2 described above,
The description is omitted.

Next, in step S17, the image 1 and the image 2 are combined according to the brightness of the mask image. Image 1 is A
1i (x, y), image 2 is A2i (x, y), mask image is M (x, y), and operation result Gi (x, y) is
When image 1 is assigned to the bright part,

[0038]

## EQU00003 ## Gi (x, y) = Ai (x, y) .times.M (x, y) / 255 + A2i (x, y) .times. (255-M (x, y)) / 255. When assigned to a department,

[0039]

## EQU00004 ## It is represented by Gi (x, y) = A2i (x, y) .times.M (x, y) / 255 + A1i (x, y) .times. (255-M (x, y)) / 255. The result is stored in the image memories 6-8.

Next, in step S18, step S1
5 and based on the direction and magnitude (concavity and convexity) of the shift of the mask position set in step S16,
The shift difference calculation of the mask image is performed. Embossing section 1
Reference numeral 7 reads the mask image data stored in the image memory M12 and performs the following calculation. That is, assuming that the mask image data is M (x, y) and the shift amount (the direction in which the light hits and the degree of unevenness) are (x1, y1), the point (x, y)
The calculation result D (x, y) in can be obtained by the equation shown in the above-mentioned equation 2.

This output result becomes the brightness changing portion given to the original image. In other words, it can be said that the amount represents the unevenness of the embossing process. The result is stored in the CPU memory 2.

Next, in step S19, the calculation result obtained in step S15 is added to the original image to give a feeling of unevenness.
The embossing processing unit 17 reads the original image data Ai stored in the image memories 6 to 8 and the above-mentioned D data stored in the CPU memory 2, and is obtained by the mathematical formula shown in the above-mentioned Equation 3. . The output image Oi (x, y) obtained as a result is stored in the image memories 9 to 11.

Next, in step S20, the CPU 1
It is determined whether the process has been performed on all screens. When the process for all screens is not completed, the process returns to step S17, and when the process for all screens is completed, all processes are completed.

In this way, the image memories 9 to 11 store the embossed images corresponding to the respective color components of the original image.

As described above, according to the second embodiment,
There is an effect that image data having unevenness, which is generated when the two color original images are combined according to the brightness of the mask image and the combined contour portion is embossed, is obtained.

Incidentally, step S3 (S13 of the above-mentioned embodiment).
In step 9 and step S4 (S16), the operator sets the direction and size of the mask position shift using the pointing device 21, but the present invention is not limited to this, and the keyboard 20 may be used, for example. You may input it from and set it. In this case, for example, as shown in the present embodiment, the shift amount (x, y) may be directly input as a numerical value (positive or negative) from the keyboard 20. In this way, it is possible to set the shift direction and magnitude at once.

Further, although the processed image data is stored in the image memory in the above-mentioned embodiment, the same is true even if it is stored in another recording medium such as a magnetic floppy disk, a magnetic tape, an optical disk, a valve memory. The effect is obtained.

Further, although the color image is described in the present embodiment, it is applicable to a monochrome image.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can also be applied to the case where it is achieved by supplying a program for implementing the present invention to a system or an apparatus.

[0050]

As described above, according to the present invention, it is possible to produce an effect that the original image data appears to have uneven portions.

Further, according to the present invention, it is possible to combine a plurality of original image data in accordance with the brightness of the mask image data, and to produce an effect in which unevenness is generated in the combined image to make it appear.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an image processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart of the first embodiment.

FIG. 3 is a diagram showing a display example of a menu screen for setting the direction of light on which the embossed unevenness is applied in the present embodiment.

FIG. 4 is a diagram showing a display example of a menu screen for setting a shift amount of a mask image according to the present embodiment.

FIG. 5 is a diagram for explaining the degree of unevenness of embossing processing in the present embodiment.

FIG. 6 is a block diagram showing a configuration of an image processing apparatus according to a second embodiment of the present invention.

FIG. 7 is a flowchart of a second embodiment.

FIG. 8 is a diagram showing a display example of a menu screen for setting lightness and darkness on two images in the second embodiment.

[Explanation of symbols]

 1 CPU 2 CPU Memory 3 CPU Interface 4 CPU Bus 6 to 12 Image Memory 13 Video Bus 14 Video Controller 15 Direction Setting Section 16 Concavity / Convexity Setting Section 17 Embossing Processing Section 18 Image Memory Controller 19 Bright / Dark Setting Section 20 Keyboard 21 Pointing Device 22 Scanner 23 printer 24 display

Claims (5)

[Claims] 1. Storage means for storing image data for masking for masking image data to be processed, and setting a direction of light that hits the uneven portion when generating unevenness in the image data to be processed. Direction setting means, inclination setting means for setting the degree of inclination of the concavo-convex portion, color information of a portion of the image data to be processed corresponding to the mask image data, the direction set by the direction setting means And an displacing unit for displacing based on the inclination degree set by the inclination setting unit. 2. Storage means for storing image data for masking for masking image data to be processed, and when generating unevenness in the image data to be processed,
Direction setting means for setting the direction of the light hitting the uneven portion, unevenness setting means for setting the degree of inclination of the uneven portion, and color information of the image data for the mask image at an arbitrary position (x, y) The image according to the difference between the data and the mask image data at a position shifted by a value (x1, y1) determined by the direction of light and the degree of inclination set by the direction setting unit and the unevenness setting unit. An image processing apparatus comprising: a replacing unit that replaces color information of data. 3. A storage unit for storing masking image data for masking each of the plurality of image data to be processed, and the plurality of storing units according to the brightness set for each image data by the masking image data. Synthesizing means for synthesizing image data, direction setting means for setting the direction of light for generating uneven portions in the plurality of image data to be processed, and inclination setting means for setting the degree of inclination of the uneven portions And, based on the direction set by the direction setting unit and the inclination degree set by the inclination setting unit, color information of a portion of the image data synthesized by the combining unit corresponding to the mask image data. An image processing apparatus comprising: a replacement unit that replaces the image. 4. An image processing method for processing image data to be processed, wherein image data for masking for masking image data to be processed is input, and uneven portions are generated in the image data to be processed. At this time, the step of setting the direction of the light hitting the uneven portion, the step of setting the degree of inclination of the uneven portion, and the color information of the portion of the image data to be processed corresponding to the mask image data, An image processing method, comprising the step of: substituting based on a set direction and a set inclination degree. 5. An image processing method for processing image data to be processed, comprising inputting image data for masking for masking each of a plurality of image data to be processed, and using the image data for masking A step of synthesizing the plurality of image data according to the brightness set in the image data, a step of setting a light direction for generating uneven portions in the plurality of image data to be processed, A step of setting a degree of inclination, a step of replacing color information of a portion of the image data of the processing object corresponding to the mask image data, based on the set direction and the set inclination degree; An image processing method comprising: