JP4932202B2 - Part program generating apparatus for image measuring apparatus, part program generating method for image measuring apparatus, and part program generating program for image measuring apparatus - Google Patents

Description

  The present invention relates to a part program generation device for an image measurement device, a method thereof, and a program for generating a part program that describes a measurement procedure for a measurement object (hereinafter, a workpiece).

  2. Description of the Related Art Conventionally, in a CNC (Computer Numerical Control) type image measuring apparatus, a part program that describes workpiece measurement conditions is generally created using the following two methods. One is a method (online teaching) in which an actual work is placed on a measuring machine and the measurement procedure is stored in the image measuring device. The other is to display the two-dimensional CAD data of the work on the screen. This is a method (offline teaching) in which a specific region is designated by operating a mouse or the like, and the measurement procedure is stored in the image measuring apparatus. In addition, after the work image is divided into a plurality of ranges and photographed, the plurality of images are combined into one sheet, and the positional relationship between the images of each of the plurality of ranges is recorded, and the combined work image is combined into one sheet. Based on this, a technique for creating a part program is disclosed (Patent Document 1).

In the above teaching, for example, when workpieces with fixed-shaped edges formed in equal directions and at equal intervals are targeted, if a so-called STEP & REPEAT function that measures edges at equal intervals is incorporated, a part program can be created quickly It becomes possible to do.
JP 2003-203216 A

  However, in fact, many workpieces have a plurality of fixed-shaped edges, but not all of the fixed-shaped edges are arranged in equal directions and at equal intervals. Therefore, it is rare that the STEP & REPEAT function can be applied to the entire work. In many cases, the operator uses the STEP & REPEAT function partially for the work, or each edge of a fixed shape is manually specified. It must be specified, and it still takes a lot of time to generate the part program.

  The present invention has been made in view of such problems, and when a workpiece has a plurality of edges having a fixed shape, a part program can be quickly created without manually specifying each edge manually. An object of the present invention is to provide a part program generation device for an image measurement device, a method thereof, and a program thereof.

In order to achieve the above object, the part program generation device for an image measurement device according to the first invention of the present application is used in an image measurement device that measures a workpiece based on image data obtained by imaging the workpiece, A part program generation device for generating a part program describing a measurement procedure, an area designating unit for designating an area for the work, an area dividing unit for dividing the area into a plurality of divided areas, An image pickup unit that moves to a divided area to acquire position information of the divided area, images the workpiece in each divided area and acquires a plurality of first work images, and a plurality of pieces based on the position information by joining the first workpiece image, and the image joining means for acquiring second workpiece image, and display means for displaying the second workpiece image, said second workpiece image All of the features and the feature image extracting means for extracting feature image having a particular characteristic, the measurement condition specifying means for specifying at least one the measurement conditions specified the feature image, the designated said measurement condition from It is characterized by comprising measurement condition assigning means for assigning to an image. Moreover, it is preferable that the measurement location extraction unit extracts the feature image based on the number of pixels and the luminance of the second work image . Furthermore, it is preferable that the measurement object extraction unit detects the position and graphic angle of the feature image, and the measurement condition assigning unit allocates the measurement condition based on the position and graphic angle of the feature image .

In order to achieve the above object, the image measurement device part program generation method according to the second invention of the present application is used in an image measurement device that measures a workpiece based on image data obtained by imaging the workpiece, A part program generation method for generating a part program that describes a measurement procedure, the step of specifying an area for the workpiece, the step of dividing the area into a plurality of divided areas, and moving to each divided area And acquiring the position information of the divided areas, capturing a plurality of first work images by imaging the work in each divided area, and a plurality of the first works based on the position information by joining the images, obtaining a second workpiece image, and displaying the second workpiece image, particular from the second workpiece image Extracting a feature image having a mark, specifying a measurement condition for at least one of the specified feature images, and assigning the specified measurement condition to all the feature images. Features.

In order to achieve the above object, the image measurement part program generation program according to the third invention of the present application is used in an image measurement apparatus that measures a workpiece based on image data obtained by imaging the workpiece, An image measurement part program generation program used to generate a part program describing a measurement procedure, the step of designating an area for the work, and the step of dividing the area into a plurality of divided areas Moving to each divided area to acquire position information of the divided area, capturing the work in each divided area to obtain a plurality of first work images, and the position information by joining a plurality of the first workpiece image bets, obtaining a second workpiece image, stearyl displaying the second workpiece image And flop, extracting feature image having a particular feature from the second workpiece image, a step of specifying a measurement condition in at least one of said designated feature image, all the specified the measurement conditions The step of assigning to the characteristic image is configured to cause a computer to execute. The step of extracting the feature image preferably extracts the feature image based on the number of pixels and the luminance of the second work image . Furthermore, the step of extracting the feature image, detects the position and shape angles of the feature image, assigning the measurement conditions, it is desirable to assign the measurement condition based on the position and shape angles of the feature image.

  According to the present invention, if a feature image having a specific feature is extracted by the feature image extracting means, and the measurement condition is specified for any one feature image by the measurement condition specifying means, The same measurement conditions as those of any one of the feature images are designated for the feature image, and a part program can be generated. Therefore, when measuring a workpiece having a plurality of parts having the same shape, it is possible to quickly create a part program without manually setting measurement conditions for each part having the same shape.

  Hereinafter, a preferred embodiment of an image measurement part program generation device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an overall configuration of an image measurement part program generation device according to the present embodiment. It is a perspective view. This system includes a non-contact type image measuring machine 1, a computer system 2 that drives and controls the image measuring machine 1, executes necessary data processing, and a printer 3 that prints out measurement results. Yes.

  The image measuring machine 1 is configured as follows. That is, a measurement table 13 on which the workpiece 12 is placed is mounted on the gantry 11, and this measurement table 13 is driven in the Y-axis direction by a Y-axis drive mechanism (not shown). Support arms 14 and 15 extending upward are fixed to the center of both side edges of the gantry 11, and an X-axis guide 16 is fixed so as to connect both upper ends of the support arms 14 and 15. An imaging unit 17 is supported on the X-axis guide 16. The imaging unit 17 is driven along the X-axis guide 16 by an X-axis drive mechanism (not shown). A CCD camera 18 is mounted on the lower end of the imaging unit 17 so as to face the measurement table 13. Further, in the imaging unit 17, in addition to a lighting device and a focusing mechanism (not shown), a Z-axis drive mechanism that moves the position of the CCD camera 18 in the Z-axis direction, and a position of the CCD camera 18 in the Z-direction at the shooting position A position sensor 19 for detecting is incorporated.

  The computer system 2 includes a computer main body 21, a keyboard 22, a joystick box (hereinafter referred to as J / S) 23, a mouse 24, and a CRT 25. The computer main body 21 is configured, for example, as shown in FIG. That is, the image information of the workpiece 12 input from the CCD camera 18 is stored in the image memory 32 via the interface (hereinafter referred to as I / F) 31.

  The CAD data of the work 12 created by a CAD system (not shown) is input to the CPU 35 via the I / F 33 when, for example, offline teaching using CAD data is executed, and is developed into bitmap image information by the CPU 35. Is stored in the image memory 32. The image information stored in the image memory 32 is displayed on the CRT 25 via the display control unit 36.

  On the other hand, code information and position information input from the keyboard 22, J / S 23, and mouse 24 are input to the CPU 35 via the I / F 34. The CPU 35 performs measurement execution processing, part program creation, according to a macro program stored in the ROM 37 and a measurement execution program stored in the RAM 40 from the HDD 38 via the I / F 39, a measurement result display program, a part program generation program, a part program, etc. And display processing of the measurement results.

  The CPU 35 controls the image measuring device 1 via the I / F 41 according to the measurement execution process. The HDD 38 is a recording medium that stores CAD data, a measurement execution program, a measurement result display program, a part program, and the like. The RAM 40 stores various programs and provides a work area for various processes.

  FIG. 3 is a functional block diagram of the part program generation device. The image of the work 12 is taken by the image acquisition unit 51. The image acquisition unit 51 captures a plurality of images by driving the CCD camera 18 within a specified range of the work 12 based on the operation of the keyboard 22 and the mouse 24. The image of the photographed workpiece is supplied to the image memory 32. The workpiece image is converted into two formats of a raster image and a vector image by the workpiece image developing unit 52 and stored in the storage unit 53, respectively. Is done. The workpiece image synthesis unit 54 synthesizes a plurality of workpiece images stored in the storage unit 53 into a single workpiece image. The coordinate system setting unit 55 performs a coordinate system setting for matching the coordinate system based on the image of the workpiece combined into one sheet and the coordinate system of the workpiece 12. Further, the feature image extraction unit 56 extracts a part having a certain feature of the workpiece image as a feature image from the workpiece image stored in the storage unit 53 based on the operation of the keyboard 22 and the mouse 24. . The measurement condition setting unit 57 sets measurement conditions including types such as edge detection tools described later. The part program generation unit 58 sets measurement conditions for all feature images extracted by the feature image extraction unit 56 based on the measurement conditions set by the measurement condition setting unit 57, and generates a part program file. To do. The generated part program file is appropriately edited by the part program editing unit 59. The generated and edited part program file is stored in the HDD 38 or the like via the part program output unit 60.

  Next, an edge detection tool used in the part program generation apparatus will be described with reference to FIGS. Here, the edge detection tool is a tool that allows measurement conditions to be determined by a mouse operation based on a workpiece image displayed on the CRT 25. FIG. 4A shows the simplest tool 71 (hereinafter referred to as a simple tool), in which the density level of image information 72 obtained by imaging a workpiece changes abruptly from the base end to the tip end of the arrow. This is for detecting a point as an edge point. The simple tool 71 is defined by the position coordinates (X, Y) of the midpoint, its length W, and the angle θ, and can be placed at any position on the workpiece image by dragging the mouse. FIG. 6B is a rectangular box-shaped tool (hereinafter referred to as a box tool) 73, which is suitable for detecting the straight line image information 72a. The middle point position coordinates (X, Y) and arrows on both sides are shown. Defined by the length W, the width H between the arrows on both sides, and the angle θ. In the case of the box tool 73, edge detection from the base end of the arrow toward the tip is repeated at a preset interval ΔH in the width H. FIG. 6C is a circular tool (hereinafter referred to as a circular tool) 74, which is suitable for detection of circular image information 72b. The position coordinates (X, Y), the inner diameter r1 for starting measurement, and the measurement Defined by the outer diameter r2. In the case of the circular tool 74, it rotates around the coordinates (X, Y) at a preset angle Δθ, and edge detection from the base end of the arrow toward the tip is repeated. In addition to the box tool and the circle tool, there are an arc tool and the like. Although all the parameters of these tools 71, 73, and 74 may be obtained by calculation for each graphic element, the calculation processing becomes complicated, and here, only the positions and inclinations of the tools 71, 73, and 74 are measured. The calculation processing amount is reduced by calculating and determining each selected graphic element.

  Therefore, in setting the edge detection tool, only the edge type (tool type), number, length W (number of pixels), and number of offsets are set for each type of graphic element (line, circle, arc, etc.). In FIG. 5A, the simple tool 71 is applied to the rectangular image information 72c, the number n is 3, an offset is set by OFF from both ends of the upper side, and the range A in the figure is the arrangement range of the simple tool 71. An example of setting is shown. The reason for setting the offset OFF is to avoid an error that the edge cannot be detected due to the simple tool 71 being arranged at the end of the line or arc. The offset OFF may be set as a length or may be set as a percentage of the line length. FIG. 4B shows an example in which four simple tools 71 are arranged for the circular image information 72b. In the case of a circle, no offset is required.

  The contents thus set are shown in FIG. For each graphic element, the tool type, the number of tools, the length W, and the offset OFF are set in the measurement condition setting unit 59 as edge detection tool generation conditions. In this example, not only the primary candidates but also other tool candidates when the generation of the primary candidate tools fails are set as secondary candidates.

  Next, a part program generation procedure in the non-contact image measurement system configured as described above will be described with reference to FIGS. FIG. 7 is a flowchart showing the procedure of the part program automatic generation processing, and FIG. 8 is a display example of a typical CRT 25 according to the present embodiment when, for example, a workpiece 12 such as a BGA package is measured. Here, the workpiece 12 includes a ball portion 81 protruding in a spherical shape. First, when a control command is output from the keyboard 22 and the mouse 24 to display the workpiece 12 via the CPU 35, the imaging magnification of the CCD camera 18 is switched to a low magnification and the workpiece 12 installed on the measurement table 13 is switched. Is filmed. The video signal is sent from the CCD camera 18 to the CRT 25 via the I / F 31, the image memory 32, and the display controller 36, and the zoomed-out raw image of the workpiece 12 as shown in FIG. Is displayed (S1). Here, with respect to the illumination, by input from the keyboard 22 and the mouse 24, settings for illumination types such as vertical epi-illumination, transmitted illumination, ring fiber illumination, and program-controlled ring illumination, and illumination light quantity setting (no light (0 %) To maximum light (100%)). Regarding lenses, it is possible to set lens magnifications for several types of lenses such as fixed magnification lenses, program-controlled power turrets, and program-controlled zoom lenses.

  In addition, a mouse pointer P is displayed on the CRT 25, and the operator moves the pointer P to the position 82 shown in FIG. 8B, clicks the mouse 24, and then drags the mouse 24, for example. The pointer P is moved to the position 83 to surround the image with a rectangle 84. By the above operation, the teaching target range, that is, the measurement target range 84 for creating the part program is designated (S2).

  When the designation of the teaching target range is completed, the designated measurement target range 84 is divided into a number of small ranges D as shown in FIG. The camera 18 takes a picture. That is, when one small range D is photographed, the position in the XY direction of the CCD camera 18 at the photographing position is detected based on the output of a position sensor (not shown) and the position data is recorded in association with the photographed image. Thereafter, the CCD camera 18 is sequentially moved in the direction of the arrow A, and the small range D is similarly photographed until the photographing of the designated measurement target range 84 is completed (S3). In addition, since the adjacent small range D performs joining, it is preferable to have a predetermined overlapping range.

  When the photographing is finished, a large number of images in the obtained small range D are joined, and a workpiece image is synthesized (S4). As described above, many small range D images have overlapping ranges. By applying a known method such as pattern matching to the overlapping range, the image of the small range D can be acquired as one piece of work-save image data 85 including the entire range of the measurement target range 84. The single large-screen work storage image data 85 is stored in the HDD 38 together with the position (XY direction) of the CCD camera 18 at the time of imaging, illumination conditions, and the like. Instead of joining, the positional relationship between images in the small range D may be calculated and stored based on position data from a position sensor (not shown) that detects the position of the CCD camera 18.

  Next, in order to extract a measurement location having a certain feature from the work storage image data 85 as a feature image, the operator inputs the feature of the measurement location using the keyboard 22 and the mouse 24 (S5). In the case of FIG. 8, the object to be extracted is the ball portion 81 of the circular image, and the operator inputs a control command for detecting a connected component having the number of pixels corresponding to the circular image and the luminance with the keyboard 22 and the mouse 24. . When the control command is input, the feature image extraction unit 56 extracts the connected component having the input number of pixels and luminance, that is, the image of the ball unit 81 as a feature image, and the extraction result is displayed on the CRT 25. For example, the display is performed as shown in FIG. 8D (S6). Since the object to be extracted is the circular ball portion 81, for example, after performing binarization processing on the extracted feature image, the feature of the connected component is analyzed, and the barycentric position of the connected component is calculated. This is the center position 86 of the ball portion 81.

  Next, a measurement condition is determined for one arbitrary feature image (S7). That is, setting of the type of edge detection tool, setting of the number of edge detection tools to be arranged, setting of the size of the edge detection tool, setting of an offset value, and the like are performed by input from the keyboard 22 and the mouse 24. FIG. 8E shows an example in which the above-described circle tool 74 is set for any one extracted feature image, here, the image of the ball part 81.

  When the edge detection tool is arranged in one arbitrary feature image as described above, the circle tool 74 set in the previous step (S7) is arranged at the center coordinates 86 of the feature image having all the ball portions 81. (S8).

  Next, the tolerance comparison between the actual measurement data and the work storage image data 85 is performed (S9). In this setting, it is possible to deal with several types of tolerances. For example, as the upper and lower limit tolerances, the allowable range from the design value is set with the upper limit tolerance and the lower limit tolerance for the coordinate value, angle, and distance. Further, as the tolerance range, a tolerance zone is set for the position degree and shape (straightness, roundness, etc.). In addition, tolerance information can be set for fitting tolerances, and the tolerance information can be stored as a tolerance list. In addition, there are two setting methods for setting the tolerance information: a method for setting common tolerance information for all the figures to be measured and a method for setting tolerance information according to design values using a normal tolerance file. Has been. After setting the tolerance information, a part program is generated based on these setting conditions (S10), and the program ends.

  Next, a case where the workpiece is, for example, a lead frame will be described with reference to FIG. As shown in FIG. 9, the workpiece 12 ′ includes one rectangular die pad 91, a plurality of lead portions 92 whose ends are located in the vicinity of the die pad 91, and four lead connection portions 93 connected to the die pad 91. Have. In this control shown in FIG. 9, the edges of a plurality of lead portions 92 that require time for setting the edge detection tool in manual operation are measured. Also in this case, the steps shown in FIGS. 9A to 9C are executed according to the procedure shown in FIG. 7 as in the example of FIG. 8 in which the ball portion 81 of the workpiece 12 is measured. That is, as shown in FIG. 9A, a raw image of the entire workpiece 12 'is displayed (S1). Next, as shown in FIG. 9B, a predetermined area is surrounded by a rectangle 94 by dragging the mouse 24, and a teaching range is designated (S2). Then, as shown in FIG. 9C, the CCD camera 18 is driven to take an image of the work 12 ′ within the quadrangle 94, that is, within the measurement target range (S3). Synthesize (S4).

  Next, a control command for detecting the lead portion 92 is input by the keyboard 22 and the mouse 24 (S5). Next, based on this control command, as shown in FIG. 9D, the lead portion 92 is extracted as a feature image from the work storage image data 95 (S6), the angle of the center line 96, and the tip thereof. 97 positions are calculated. Here, in FIG. 9D, the lead portion 92 extracted as a feature image is indicated by a solid line, and the die pad 91 and the lead connection portion 93 that are not the feature image are indicated by a broken line.

  The calculation method of the lead part 92 and its tip 97 is, for example, to binarize the image of the lead part 92 and obtain a binary image in which the gradation of the lead part 92 is 1 and the background part other than the lead part is 0. Subsequently, a line figure having a line width of 1 is generated with eight connections (Hilditch thinning algorithm or the like), and the line figure is set as a center line 96. Subsequently, a pixel having a connectivity of 1 is calculated by eight connections of the center line 96, and the pixel having the connectivity of 1 is defined as a tip 97 of the lead 92. In this way, the angle of the center line 96 and the position of the tip 97 can be calculated.

  Next, as shown in FIG. 9E, the operator places an edge detection tool on one arbitrarily selected lead portion 92 (S7). Here, rectangular box tools 73 a and 73 b are set in the lead portion 92 by operating the mouse 24. Subsequently, the box tools 73a and 73b set in this way are similarly set for the lead portions 92 which are all feature images shown in FIG. 9D (S8). For example, as shown in FIG. 9 (e), the edge detection tool is arranged with respect to all the lead portions 92, with the leading edge 97 as the origin for each lead portion 92, and the center line 96 orthogonal to the center line 96. This can be executed by providing a coordinate system (X′Y ′) consisting of the axis 98 and calculating the centers w1 and w2 of the box tools 73a and 73b to be arranged. That is, the position of the edge detection tool arranged on the arbitrarily selected lead portion 92 is specified based on the coordinate system (X ′, Y ′), and the positions of the edge detection tool are respectively included in all the other lead portions 92. It can be executed by assigning to the coordinate system (X ′, Y ′). The arrangement of the edge detection tools in FIG. 9E is an example, and the number of edge detection tools to be arranged may be two or more, and is not limited to the box tool 73.

  When the steps up to S8 are completed as described above, tolerance values are set in the same manner as in the example of FIG. 8 (S9), and a part program is generated (S10).

  Although the embodiments of the invention have been described above, the present invention is not limited to these embodiments, and various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention. For example, in the present embodiment, a part program is created based on an image of a work obtained by photographing a work and combining a plurality of images. However, only one photographed image may be used or prepared in advance. It is also possible to create a part program based on the two-dimensional CAD data.

It is a perspective view which shows the structure of the part program production | generation apparatus for image measuring apparatuses which concerns on embodiment of this invention. It is a block diagram which shows the structure of the computer main body in the part program production | generation apparatus for image measurement apparatuses which concerns on embodiment of this invention. It is a functional block diagram of the part program generation device for image measuring devices concerning an embodiment of the invention. It is a figure which shows an example of an edge detection tool. It is a figure for demonstrating the setting of a measurement condition. It is a figure for demonstrating the setting of a measurement condition. The flowchart which shows operation | movement of the part program production | generation apparatus for image measuring apparatuses which concerns on embodiment of this invention is shown. It is a display example of CRT25 of the part program production | generation apparatus for image measuring apparatuses which concerns on embodiment of this invention. It is another example of a display of CRT25 of the part program production | generation apparatus for image measuring apparatuses which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Image measuring machine, 2 ... Computer system, 3 ... Printer, 11 ... Mount, 12, 12 '... Workpiece, 13 ... Measurement table, 14, 15 ... Support arm, 16 ... X-axis guide, 17 ... Imaging unit, 18 ... CCD camera, 19 ... Position sensor, 21 ... Computer body, 22 ... Keyboard, 23 ... Joystick box, 24 ... Mouse, 25 ... CRT, 31, 33, 34, 39, 41 ... I / F, 32 ... Image memory, 35 ... CPU, 36 ... display control unit, 37 ... ROM, 38 ... HDD, 40 ... RAM 51 ... image acquisition unit, 52 ... work image development unit, 53 ... storage unit, 54 ... work image composition unit, 55 ... coordinate system setting , 56 ... feature image extraction unit, 57 ... measurement condition setting unit, 58 ... part program generation unit, 59 ... part program editing unit, 60 ... part program output Force part.

Claims (9)

A part program generation device that is used in an image measurement device that measures a workpiece based on image data obtained by imaging the workpiece and generates a part program that describes a measurement procedure,
Area designating means for designating an area for the workpiece;
Area dividing means for dividing the area into a plurality of divided areas;
An image pickup unit that moves to each divided area to obtain position information of the divided area, and that takes an image of the workpiece in each divided area and obtains a plurality of first work images ;
Image joining means for obtaining a second workpiece image by joining a plurality of the first workpiece images based on the position information;
Display means for displaying the second work image ;
Feature image extraction means for extracting a feature image having a specific feature from the second work image ;
Measurement condition designating means for designating measurement conditions for at least one of the specified feature images;
A part program generation device for an image measurement device, comprising: measurement condition assignment means for assigning the designated measurement condition to all the feature images. 2. The part program generation device for an image measuring device according to claim 1, wherein the feature image extraction unit extracts the feature image based on the number of pixels and the luminance of the two work images . The feature image extraction means detects a position of the feature image ;
3. The image measurement device part program generation device according to claim 1 , wherein the measurement condition assigning unit assigns the measurement condition based on a position of the feature image . The feature image extraction means detects a figure angle of the feature image ;
3. The image measurement device part program generation device according to claim 1 , wherein the measurement condition assigning unit assigns the measurement condition based on a graphic angle of the feature image . A part program generation method for generating a part program that describes a measurement procedure and is used in an image measurement apparatus that measures a workpiece based on image data obtained by imaging the workpiece,
Designating an area for the workpiece;
Dividing the region into a plurality of divided regions;
Moving to each divided area to obtain position information of the divided area, capturing the work in each divided area and obtaining a plurality of first work images; and
Obtaining a second work image by joining a plurality of the first work images based on the position information;
Displaying the second work image ;
Extracting a feature image having a specific feature from the second work image ;
Designating measurement conditions for at least one of the designated feature images;
Assigning the designated measurement condition to all the feature images. A method of generating a part program for an image measurement device. An image measurement part program generating program used for an image measuring apparatus for measuring a workpiece based on image data obtained by imaging the workpiece, and used for generating a part program describing a measurement procedure,
Designating an area for the workpiece;
Dividing the region into a plurality of divided regions;
Moving to each divided area to obtain position information of the divided area, capturing the work in each divided area and obtaining a plurality of first work images; and
Obtaining a second work image by joining a plurality of the first work images based on the position information;
Displaying the second work image ;
Extracting a feature image having a specific feature from the second work image ;
Designating measurement conditions for at least one of the designated feature images;
An image measurement part program generation program configured to cause a computer to execute the step of assigning the specified measurement condition to all the feature images. The program for generating a part program for an image measuring device according to claim 6, wherein the step of extracting the feature image extracts the feature image based on the number of pixels and the luminance of the two work images . Extracting the feature image includes detecting a position of the feature image ;
The program for generating a part program for an image measurement device according to claim 6 or 7 , wherein the step of assigning the measurement condition assigns the measurement condition based on a position of the feature image . Extracting the feature image includes detecting a graphic angle of the feature image ;
8. The program for generating a part program for an image measuring device according to claim 6 , wherein the step of assigning the measurement condition assigns the measurement condition based on a graphic angle of the feature image .

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