JP2003042847A - Method of investigating and analyzing color - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of investigating and analyzing the color of an object to be investigated in which the color of the object including a scene or the like can be investigated in a short time, and in which data processed and investigated results can be compared and analyzed simply. SOLUTION: The scene 11 as the object to be investigated of the color is photographed as a plurality of scenes at 360 deg.. Its photographed color image is input to a computer 12 so as to be stored. At this time, data on an investigated data, a place name or the like is input from a keyboard 13. The stored color image is accessed by a display device 14, a plurality of images are connected as required so as to form a panoramic image, and the image is color- mosaic-processed by referring to a color information table stored inside the computer. Information on the by-color area constitution ratio, the appearance frequency or the like of the mosaic-processed color image is compared with past data on an identical point or data on another point, and a change in an environment in the same point and an environmental state in each investigation point are compared and analyzed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for investigating and analyzing the color of an object to be investigated and an apparatus for investigating and analyzing the color, and specifically, investigating and analyzing the color of the object to be investigated including landscapes and the like. The present invention relates to a method for performing, a color survey and analysis device.

[0002]

2. Description of the Related Art Conventionally, in order to investigate changes in the environment, the color of a landscape in a specific vertical viewing angle range and a circumference of 360 ° is visually measured from a fixed survey point, and this measurement result is converted into data. Is being done. The color of this landscape is measured using a color chip composed of a large number of color frames of different colors, and the color of the landscape and the color frame of the color chip are compared for each range of the subdivided landscape, This is done by selecting the color that is closest to the color of the landscape. If it is determined which color frame the landscape color corresponds to in each subdivided range, the corresponding color data (Munsell value or the like) is obtained from the number of the determined color frame. This color data covers dozens to hundreds at one survey point. At the time of recording this color data, data such as the survey location of the landscape, the survey area, the date and time of the survey, the degree of perspective of the observed landscape, whether it is a natural or artificial object, the season of the survey, etc. are also collected at the same time. Based on the comparison with other survey areas, the regional characteristics of landscape color are obtained, or the survey and analysis of the color etc. at a certain area or a certain survey point is performed, or the past data at the same survey point or the same survey area Is compared with
Analysis of changes in landscape colors over the four seasons or changes over the years at the same location or in the same area is conducted.

[0003]

In such a conventional color survey and analysis method, it takes a long time to measure color at one survey point due to human visual color measurement, and a large amount of data is collected. It required a great deal of work to carry out and arrange the above. Also, because it is a visual measurement color,
There are cases in which the colors that the observer feels correspond to the colors of the landscape may differ somewhat, and it was necessary to take various measures such as training to ensure the objectivity of the data. Furthermore, comparison with other landscapes and comparison with past data at the same survey point will also be numerical comparison,
Because it does not directly compare the color of the visual landscape,
Only the expert could understand. In order to solve this, an attempt has been made to show color data as a color image on a display screen, but the current situation is that sufficient results have not been obtained.

The present invention has been made in view of the above circumstances, and allows the color of an object to be inspected including a landscape to be investigated in a short time, and the obtained individual color data can be manually obtained. The object of the present invention is to provide a color investigation of an object, an analysis method and a color investigation, and an analysis device which can easily perform data processing, comparison of investigation results, and analysis without requiring input.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a step of photographing a color surveyed object with a camera, a step of inputting and storing the photographed color image, and color information of the input and stored color image. It is intended to provide a method for investigating colors, which has a step of performing mosaic processing with reference to a table.

Further, the present invention refers to a step of photographing a color examination object with a camera, a step of inputting and storing the photographed color image, and a color information table for referring to the input and stored color image. The present invention provides a method for investigating and analyzing color, which includes a step of performing a mosaic process and a step of analyzing information of a color image mosaiced by the mosaic process.

Further, the present invention refers to a step of photographing a color inspection object with a camera, a step of inputting and storing the photographed color image, and a color information table referring to the input and stored color image. A mosaic processing step, a step of designating a partial area of the mosaiced image, and a step of selecting a color of the designated image area with reference to a second color information table. The present invention provides a method for investigating and analyzing colors.

Further, according to the present invention, in the above-described color checking method and checking and analyzing method, a plurality of stored color images are connected before the stored color images are mosaiced by referring to the color information table. A method of investigating color and a method of investigating and analyzing, which is characterized by using a panoramic image.

Further, according to the present invention, means for inputting and storing the photographed images converted into R, G, B signals, and means for performing mosaic processing on the inputted and stored photographed images by referring to a color information table, It is an object of the present invention to provide a color research apparatus having a display unit for displaying a mosaiced color image.

The color investigation and analysis method of the present invention will be described in detail below with reference to the scenery color analysis and analysis, which is one embodiment.

FIG. 1 shows an example of the configuration of an apparatus according to the present invention. Reference numeral 11 is a photographing device such as a camera used for photographing a landscape, and 12 is an image input board 1.
3. Data writing circuit, storage device such as memory, search circuit, color information table, comparison circuit, data output circuit, and other means required for color investigation and analysis, and mosaic processing of the photographed landscape and A computer for analyzing and simulating a mosaiced image, 14 is a display device such as a display for displaying processing results,
Reference numeral 15 is a command input means such as a keyboard or a mouse for inputting commands to the computer from the outside.

The outline of the method for investigating and analyzing the color of a landscape will be described with reference to FIG. First, the landscape is photographed at a certain survey point in order to conduct a landscape color survey (2
01). The photographing information data is input to the computer and the photographed image is input to and stored in the computer via the image input board 13 (202). This input and stored digital image is subjected to mosaic processing based on the colors of the color information table which is preset and input and stored in a storage device such as a memory (203). On the basis of this mosaiced image information, the color analysis of the landscape (204) or the color simulation (205) is performed.

The above steps will be described in more detail. First of all, the scenery is photographed by a digital camera 1 with a built-in CCD.
1 is installed at the survey point, and the landscape of 360 degrees around it is divided into, for example, 10 photographs, and color images are taken in order from north to east, south, and west. At this time, the photographing may be carried out by an ordinary camera using a color photographic film. The landscape may not be captured from the north, and the number of captured images may be more or less than 10. Furthermore, if it is not necessary to obtain a 360-degree panoramic image, it is not necessary to photograph the entire 360-degree landscape. However, in a landscape color survey, it is necessary to compare aging changes, seasonal changes, etc. at a certain shooting point, or to compare data with other points, so shooting conditions can be set at any shooting point. It is desirable to keep it constant. Also, from the viewpoint of comparing colors, it is desirable to photograph the landscape at a certain time on a sunny day.

After taking a picture, the 10 shot images are input to the computer 12 together with the shooting information. As for the data input, since the data relating to the photographing information is usually input before the image data photographed by the digital camera 11 is inputted to the computer, first the photographing information is inputted.
5 will be described. Note that the data regarding the shooting information may be input after the image is input.

The input of the data relating to the photographing information is started from the area maintenance (3) as shown in FIG.
01). In this regional maintenance, information on measurement points is set as shown in FIG. The setting information includes a survey area and a measurement point (401). Next, data is input (302), and colorimetric information is input. The colorimetric information includes the name of the measurement area where the image was taken, the name of the measurement point, the survey year, the date and time of the survey, the four seasons data, the perspective data of the photographed landscape, the data of natural or artificial or semi-natural, etc. Data may be input from the screen using the keyboard 15 or may be read from a file. After this information is entered, the entered information is saved in the file. Also, search for these information (30
Input and set the search key so that 3) can be performed. The search key may be the item of the color measurement information. By setting this search key, you can search and confirm the input information, search the input information,
Or confirm. Further, the data setting (304) that specifies the condition for examining the distribution of the color information of the input analog or digital image is performed, and the display method is specified for the color distribution (305) of the condition specified in the data setting. Are programmed to be displayed on a display device.

On the other hand, the color image taken by the digital camera 11 is read into the computer via the image input board 13 (202). Further, when the survey landscape is photographed using a color photographic film, the photographed photograph may be read by an image reading device (scanner), and the read data may be read into the computer via the image input board 13. The analog data of the 10 color images read in the computer is converted into digital data (jpg / bmp data conversion) and stored in the memory. As described above, the image data may be directly input to the computer 12 from the digital camera or the image reading device, or the color image data may be temporarily fetched by another computer and stored in a file, and the data may be passed through, for example, a flexible disk. It may be input to and stored in the computer 12. In this example, the image data is handled as data having a width of 394 pixels and a height of 395 pixels.

Next, mosaic processing of this input and stored image is performed (203). Before performing this mosaic processing, first, 10 color images are sequentially read from the memory and sequentially arranged in a line from the north on the display device to panorama display the landscape of the surveyed point. Screen processing such as erasing unnecessary screen portions such as overlapping photographed portions is performed to create a 360-degree panoramic image. The data of the panoramic image of a certain measurement point thus formed is saved in the memory as a panoramic image or 10 screens if necessary.

The formed panoramic image is then subjected to mosaic processing. At this time, the size of the grid is specified to determine the size of the mosaic. The read image is divided into designated grid units, the grid color is obtained for each grid, and mosaic display is performed as a set of grids of the obtained colors. For the color of each grid at this time, first find the representative color of each grid, compare the color of this representative color with the color in the color information table (color palette), and find the color closest to the representative color of the grid. Display as color. To determine the representative color of the grid, (1) the method of using the center color of the grid as the representative color, (2) the average color of the grid (totaling the values of all pixels for each RGB, and calculating the number of pixel points in the grid) (Divided by) is used as a representative color, and (3) the color of designated coordinates is used as a representative color. Method (3) is
It is convenient to use when there is a particularly noticeable color on the screen. In the above methods (1) to (3), for example, the color part to be noticed is first designated by the method (3) to mosaic the part, and then the remaining part is subjected to (1) or (2). If necessary, they may be used in combination, such as by mosaicing with a method. The created mosaic-processed panoramic image is registered as a panorama and saved in a panorama file. The panorama image stored in this file is programmed so that it can be displayed as a 360-degree panorama image or as a screen (1/10 screen) in a mosaic image even in continuous gradation.

The color of the color information table used in the mosaic processing of the panoramic image is Munsell color chart or PCC.
Colors that are considered to be frequently used are selected from existing color charts such as the S color chart, pre-read by the computer, and stored in the memory. The number of colors in this color information table is, for example, 260 colors. The number of colors may be, for example, 500, or may be less than 260 colors. When the number of colors is increased, more detailed information can be obtained, but it takes time to calculate the mosaic processing, and the frequency of use per color is reduced when comparing the data. Comparison may be difficult. Also, if the number of colors is too small, it may be difficult to identify the spot color of the landscape when comparing the color information of the landscape.

This color information table is displayed on the screen as needed. The display format on the screen is, for example, such that color frames of all colors of the color information table or selected color frames are arranged with the horizontal axis as hue and the vertical axis as tone (brightness + saturation). A typical arrangement is a list of colors (color palette). It goes without saying that the arrangement format of the color frames in this color palette may be other than the example shown above, and any one of the three attributes of color, hue, lightness, and saturation, or a combination of these two may be used as the horizontal axis. Further, any one may be used as long as the color attributes other than the color attributes used on the horizontal axis are arranged on the vertical axis. Further, for example, the hue may be designated and fixed, and two types of three attributes of color may be selected on the horizontal axis and the vertical axis such that the vertical axis is the brightness and the horizontal axis is the saturation. . That is, the arrangement format of the color frames in the color palette may be any format as long as it can be expressed using the three attributes of color. Depending on the method of selecting the color attribute for each axis, the blank area may increase in the color palette and it may be difficult to use. Therefore, the color having the optimum arrangement according to the content of the color research and analysis method of the present invention may be used. Select a palette and use it. A plurality of color information tables may be set, such as standard, dedicated to a specific area, dedicated to natural or artificial objects, and one of them may be selected and used.

The mosaic image processed in this way is used as information for analyzing landscape colors, comparing colors with other landscapes, and analyzing colors including simulation of colors. For example, in the analysis of landscape color, the color area composition ratio of the mosaic image displayed on the screen is calculated, or
Color appearance frequency pattern processing is performed, and colors that appear in the mosaic image displayed on the screen and their composition ratios (for example, the number of appearances for each color frame appearing on the screen) and only the appearance colors on the color palette are displayed. The frequency can be displayed on the screen together with the mosaic image. For example, the color tendency of the landscape at the measurement point can be grasped from the type of the color frame that appears, the frequency of appearance, the color deviation on the screen, and the like. The obtained data is stored in the memory. Further, these data can be used for comparison of data at a plurality of places or comparison of data at the same place.

For example, by accumulating survey data at each measuring point for each season for a long period of time and constructing a database, it is possible to easily carry out a seasonal comparison at each measuring point, a yearly comparison in the same season, and the like. It is possible to perform data comparison such as landscape color comparison between each measurement point and other measurement points, color distribution comparison between one area and another area, seasonal comparison, year-on-year comparison, etc. Becomes That is, a plurality of related mosaic images are called from the database on the same screen, and the images displayed on these display screens are directly visually compared, or color appearance frequency data (for example, used color, composition ratio, etc.) is displayed on the screen. It becomes possible to easily carry out the comparison by comparing in. This data comparison is
It appeals directly to the eyes and can be done instantly when needed, so it is highly useful as an explanatory material. For example, by comparing such data, it is possible to easily and accurately investigate the degree of environmental damage. It should be noted that these comparisons can be performed by, for example, printing out a required mosaic image with a printer and comparing a plurality of images printed by this printer.

If the landscape is surveyed at a plurality of locations within the same area, and the data at each survey location is subjected to the same data processing as above and the data is accumulated,
By taking the average of the data at multiple points in the same area and positioning this value as the color distribution characteristic of this area,
You can compare seasonal color data between this area and other areas, compare seasonal colors with the same area data at a certain point, compare years of colors in the same area in the same season, etc. It is possible to know the change in the color environment for each time, and the characteristic of the color of the landscape in the area becomes clear, which can be used as data for environmental improvement.

Furthermore, it is possible to perform color simulation using the mosaiced image. That is, the color that is in harmony with the color stored in the computer is stored in advance as the second color information table. An arbitrary area on the image is designated on the screen, and a color that matches the surrounding color designated as the color of this area is selected and displayed by a program that selects from the second color information table. By registering multiple colors that are in harmony with a certain color, it is possible to select the optimum color that matches the surrounding colors by sequentially replacing and displaying the colors in the specified area. . The area on the image may be designated by, for example, pen input or may be combined with another image. With such a simulation, for example, if you want to build a bridge, determine the color of the bridge that matches the surrounding landscape throughout the four seasons, or set the color of the building when building a building to match the color of the surrounding landscape. The data can be used for various purposes such as being possible.

Although the color research and analysis method of the present invention has been described above based on the landscape color research and analysis, the color research and analysis method of the present invention is limited to the landscape color research and analysis. However, it can be appropriately applied to a method for inspecting a change in color such as the degree of fading of coating and the degree of corrosion of metal. Although the image is described as a panoramic image, the mosaic image does not have to be a panoramic image. Further, it goes without saying that the images may be compared not only by the panoramic images but also by each one-shot image. In addition, if the data can be corrected and added appropriately, the data can be updated and the data can be corrected, which is convenient for use.

[0026]

As described in detail above, according to the present invention, it is possible to perform a color investigation in a short time and to perform data processing without manually inputting the obtained individual color data. The effect is that comparison and analysis of survey results can be easily performed.

[Brief description of drawings]

FIG. 1 is an apparatus for investigating and analyzing color according to an embodiment of the present invention.

FIG. 2 is a schematic explanatory diagram of a method for investigating and analyzing a color of a landscape which is an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a procedure for inputting shooting information in a landscape investigation / analysis method according to an embodiment of the present invention.

FIG. 4 is a detailed explanatory view of the regional maintenance of FIG.

FIG. 5 is a detailed explanatory diagram of the data input of FIG.

FIG. 6 is an explanatory diagram of color image information data creation in a landscape survey and analysis method according to an embodiment of the present invention.

[Explanation of symbols]

11 cameras 12 computers 13 Image input board 14 Display 15 Command input means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Michio Takeichi             1-14-1 Higashi Nihonbashi Stock Market, Chuo-ku, Tokyo             Inside Nakagawa Chemical (72) Inventor Atsuko Taguchi             2-1723 Omizu, Hachioji City, Tokyo Educational Corporation             Tama Art University (72) Inventor Masao Yamagishi             10 Suemachi Kanazawa City, Ishikawa Prefecture Kanazawa Academy             Inside the junior college (72) Inventor Yu Sato             4-9-1, Shiobara, Minami-ku, Fukuoka-shi, Fukuoka             State University of Art and Design (72) Inventor Isao Miyazawa             1-6-7 Kamiochiai NK Building, Shinjuku-ku, Tokyo               GK Design Co., Ltd. (72) Inventor Ryozo Takeyama             180 Nikamicho, Takaoka City, Toyama Prefecture National Takaoka Junior College             On campus (72) Inventor Toru Shigeoka             11-8 Nihonbashi Odenmacho, Chuo-ku, Tokyo             Within the Rural Environment Improvement Center F-term (reference) 2G020 AA08 DA05 DA24 DA34 DA35                       DA54                 5B057 BA02 CA01 CA08 CA12 CA16                       CB01 CB08 CB12 CB16 CC02                       CE10 CE16 CE20 CH07 DA12                       DA13 DA16 DB02 DB06 DB09                       DC04 DC19 DC25                 5L096 AA02 AA06 BA20 CA02 EA45                       FA35 FA52 FA59 GA40

Claims (5)

[Claims] 1. A step of photographing a color inspection object with a camera, a step of inputting and storing the photographed color image,
A method of investigating color, comprising a step of performing mosaic processing on the input and stored color image with reference to a color information table. 2. A step of photographing a color inspection object with a camera, a step of inputting and storing the photographed color image,
This input and stored color image is referred to a color information table to perform a mosaic processing, and a step of analyzing color information of the color image mosaiced by the mosaic processing is analyzed and characterized. . 3. A step of photographing a color survey object with a camera, a step of inputting and storing the photographed color image,
This input and stored color image is referred to a color information table to perform mosaic processing, a step of specifying a partial area of the mosaiced image, and a second step of selecting a color of the specified image area. A method for investigating and analyzing color, comprising the step of referring to a color information table. 4. The panoramic image is formed by connecting a plurality of stored color images before performing mosaic processing on the stored color image by referring to a color information table. Described survey method or survey and analysis method. 5. Mosaic means for inputting and storing photographed images converted into R, G, B signals, and means for performing mosaic processing on the photographed images input and stored by referring to a color information table. A color research apparatus having means for displaying a color image.