JP2864524B2 - Image processing device - Google Patents

Description

The present invention relates to an image processing apparatus for recognizing and determining an input image based on preset point window determination condition data.

<< Summary of the Invention >> In the present invention, when setting conditions of a point window for discriminating an input image in an image processing apparatus, a setting operation is performed by performing a condition specification while displaying a logical operation table on a monitor screen. It was made easier.

<< Prior art and its problems >> Conventionally, an image processing apparatus that sets a discriminating condition for each point window and recognizes and discriminates an input image. A logical expression specifying the data value was created and entered. This method has no problem when the number of point windows is small, but when there are many point windows, for example, when 128 are set, the logical expression becomes long and the input operation is troublesome, or when there is an erroneous input In addition, it has become difficult to find and correct it, which has been a drawback in operation of this type of image processing apparatus.

<< Object of the Invention >> The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to simplify the operation of setting a determination condition for each point window, and furthermore, set conditions after input. It is an object of the present invention to provide an easy-to-use image processing apparatus with easy checking.

<< Structure and Effect of the Invention >> In order to achieve the above object, the present invention provides an image processing apparatus for discriminating an object obtained from image input means such as a camera from image data in a plurality of point windows. Means for displaying a logical operation table for displaying the condition data of the point window on the monitor screen, and key input means for designating the condition data of the point window in the logical operation table.

The image processing apparatus according to the present invention facilitates the setting operation by specifying the conditions while displaying the logical operation table on the monitor screen when setting the conditions of the point window to determine the input image. It is easy to check the setting conditions.

<< Example >> Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an electrical configuration of the image processing apparatus.

In FIG. 1, a camera 1 captures an image of a work, and outputs a video signal representing a grayscale image of the work. This video signal is converted by the image input processing unit 2 into a binary image pattern signal. The binarized pattern signal is supplied to the video monitor 10 via the video synthesizing circuit 9 and to the image processing unit 3.

The image processing unit 3 obtains the areas of arbitrary plural regions (point windows) based on the binarized image pattern, and gives the values to the CPU 4. The CPU 4 determines the presence or absence of an object in each area from each area value. Here, identification and determination of a work are performed using a logical operation table stored in the RAM 6 in advance. identification·
The result of the determination is sent to the video monitor 10 via the video synthesizing circuit 9.
Will be displayed.

The ROM 5 stores a series of programs for setting determination processing and measurement / determination conditions, and the RAM 6 stores various data and includes a work area for executing processing. The input control unit 7 supplies a key input signal from the console 8 to the CPU 4. Here, the console 8 is used for setting windows and performing key input when creating a logical operation table.

FIG. 2 is an arrangement diagram of point windows set in an image in this embodiment, and a total of 16 point windows W1 to W16 are arranged in each of four rows and columns.

FIG. 3 shows that the work A, B, C
Shows an image in which a point window is superimposed on an image captured and input.

The image of the work A shown in FIG. A is characterized in that four holes H are respectively formed at four corners and a center diagonal line, and point windows W1, W4, W6, W7, W10, W11, W13 are provided. , W1
The condition is that the image included in 6 is white. In the case of this image, the image is the same even if rotated by 90 degrees.

The image of the workpiece B shown in FIG. B is characterized in that holes H are formed at three of the four corners, and considering the rotation of the image, the images of the images included in the point windows W1, W4, W13, and W16 are obtained. The condition is that three of them are white.

The image of the work C shown in FIG. C is characterized in that holes H are formed at three positions on the center diagonal line, and considering the rotation of the image, the point windows W6, W7, W10, W11.
Of the images included in the image A are white, and no holes H are formed in any of the four corners to distinguish the images from the image of the work A. That is, the point windows W1, W4, W1
3. The condition is that the image included in W16 is black.

FIG. 4 shows the conditions for each image shown in FIG. 3 in a logical operation table of the video monitor 10. In the logical operation table, condition entry columns for the point windows W1 to W16 are arranged horizontally, and entry columns for identification image names are arranged vertically.

In the column of the image A, a white AND condition or a black AND condition is designated by a symbol for all point windows.

In the column of image B, white OR conditions are designated by symbols for the point windows corresponding to the four corners.

In the column of the image C, a black AND condition is designated by a symbol for the point windows corresponding to the four corners, and a black OR condition is designated by the symbols at four locations on the center diagonal line.

In the case of this embodiment, the white and black of the conditions set in the point window are black pixels indicating a captured image included in the point window, and when the value is 0, it is regarded as white and 1 The above cases are considered to be black.

The above-described condition data for each image is input and set by symbols while moving a cursor key on the console 8.

As described above, the conditions for image determination are set in the logical operation table on the video monitor 10, thereby simplifying the input operation compared to the conventional input using a logical expression, and displaying a large number of input conditions. Moreover, the input operation and the input condition can be easily confirmed visually and the efficiency of the input operation can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of an image processing apparatus according to the present invention, FIG. 2 is a layout view of a point window set in an image, and FIG. FIG. 4 is an explanatory diagram of a logical operation table displayed on a monitor. DESCRIPTION OF SYMBOLS 1 ... Camera 2 ... Image input processing part 3 ... Image processing part 4 ... CPU 5 ... ROM 6 ... RAM 7 ... Input control part 8 ... Console 9 ... Video synthesis circuit 10 ... Video monitor W1-W16 …… Point window

Claims (1)

(57) [Claims] 1. An image processing apparatus for discriminating an object obtained from image input means such as a camera from image data in a plurality of point windows, wherein a logical operation table for displaying condition data of the point window is monitored for each object. An image processing apparatus comprising: means for displaying on a screen; and key input means for designating condition data of a point window in a logical operation table.