HDevelop User's Manual

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42 CHAPTER 2. GRAPHICAL USER INTERFACE The menu has a cascade structure, according to the chapter structure of the HALCON reference manual. As this menu has to be built up after opening the program window, it might take some time until it is available. During the build-up time the menu is “grayed out”. Selecting a chapter of the menu opens a pulldown menu with the corresponding subchapters or operators, respectively. This operator hierarchy is especially useful for novices because it offers all operators sorted by thematic aspects. This might be interesting for an experienced user, too, if he wants to compare, e.g., different smoothing filters, because they reside in the same subchapter. To get additional information, a short description of an operator (while activating its name in the menu) is displayed in the status bar (see figure 2.25). Note, that some operators are visible in the menus but cannot be selected, e.g., ÓÔÒ ÛÒÓÛ (in ÇÔÖØÓÖ× º ÖÔ× º ÏÒÓÛ)orÖ×Ø Ó (in ÇÔÖØÓÖ× º ËÝ×ØÑ º Ø×) . In the case of most of these operators, you should use the corresponding ÚÐÓÔ operator (e.g., Ú ÓÔÒ ÛÒÓÛ instead of ÓÔÒ ÛÒÓÛ) within HDevelop. Some operators, e.g. Ö×Ø Ó , cannot be called at all within HDevelop. 2.3.2.6 The Menu Item ËÙ×ØÓÒ× This menu shows you another possibility how to select HALCON operators. But here they are proposed to you in a different manner. It is assumed that you have already selected or executed an operator in a previous step. Depending on this operator, five different suggestions are offered. Figure 2.26 shows possible successor suggestions for operator Ö Ñ. Figure 2.26: Suggestions to select a successor of HALCON operator Ö Ñ. Suggestions are separated into groups as follows: HDevelop / 2000-11-16
2.3. MAIN WINDOW 43 ËÙ×ØÓÒ× º ÈÖ××ÓÖ Many operators require a reasonable or necessary predecessor operator. For example before computing junction points in a skeleton (ÙÒØÓÒ× ×ÐØÓÒ), you have to compute this skeleton itself (×ÐØÓÒ). To obtain a threshold image you have to use a lowpass filter before executing a dynamic threshold (ÝÒ ØÖ×ÓÐ). Using the watershed algorithms (ÛØÖ××), it is reasonable to apply a smoothing filter on an image first, because this reduces runtime considerably. ËÙ×ØÓÒ× º ËÙ××ÓÖ In many cases the task results in a “natural” sequence of operators. Thus as a rule you use a thresholding after executing an edge filter or you execute a region processing (e.g., morphological operators) after a segmentation. To facilitate a reasonable processing all the possible operators are offered in this menu item. ËÙ×ØÓÒ× º ÐØÖÒØÚ× Since HALCON includes a large library, this menu item suggests alternative operators. Thus, you may, for example, replace ÑÒ Ñ with operators such as Ù×× Ñ, ×Ñ Ñ, or×ÑÓÓØ Ñ. ËÙ×ØÓÒ× º Ë Ð×Ó Contrary to ÐØÖÒØÚ×, operators are offered here which have some connection to the current operator. Thus, the median filter (ÑÒ Ñ) is not a direct alternative to the mean filter (ÑÒ Ñ). Similarly, the regiongrowing operator (ÖÓÒÖÓÛÒ)is no alternative for a thresholding. In any case, they offer another approach to solve a task. References might consist of pure informative nature, too: the operator Ò ÐÓÛÔ××, which is used to create a lowpass filter in the frequency domain, is a reasonable reference to a Gaussian filter. ËÙ×ØÓÒ× º ÃÝÛÓÖ× This menu item gives access to HALCON operators by using keywords which are associated with each operator. You get a window, divided into two parts, which contains all keywords on the left hand side and the selected operators on the right (see figure 2.27). Figure 2.27: Operator suggestions according to keyword “Clipping”. HALCON 6.0
Page 1 and 2: HALCON Version 6.0 MVTec Software G
Page 3 and 4: About This Manual This manual is a
Page 5 and 6: Contents 1 Introducing HDevelop 1 1
Page 7 and 8: Contents iii comment . . . . . . .
Page 9 and 10: Chapter 1 Introducing HDevelop In f
Page 11 and 12: 1.2. EXAMPLE SESSION 3 Figure 1.1:
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Page 17 and 18: Chapter 2 Graphical User Interface
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Page 25 and 26: 2.3. MAIN WINDOW 17 Figure 2.7: The
Page 27 and 28: 2.3. MAIN WINDOW 19 and not HDevelo
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Page 31 and 32: 2.3. MAIN WINDOW 23 2.3.2.4 The Men
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Page 35 and 36: 2.3. MAIN WINDOW 27 in a graphics w
Page 37 and 38: 2.3. MAIN WINDOW 29 Figure 2.16: On
Page 39 and 40: 2.3. MAIN WINDOW 31 Figure 2.17: Co
Page 41 and 42: 2.3. MAIN WINDOW 33 Figure 2.18: Se
Page 43 and 44: 2.3. MAIN WINDOW 35 Figure 2.20: Se
Page 45 and 46: 2.3. MAIN WINDOW 37 Figure 2.23: Ex
Page 47 and 48: 2.3. MAIN WINDOW 39 output paramete
Page 49: 2.3. MAIN WINDOW 41 is registered i
Page 53 and 54: 2.3. MAIN WINDOW 45 ÏÒÓÛ º ×
Page 55 and 56: 2.3. MAIN WINDOW 47 Figure 2.31: Th
Page 57 and 58: 2.5. OPERATOR WINDOW 49 The program
Page 59 and 60: 2.5. OPERATOR WINDOW 51 Please refe
Page 61 and 62: 2.6. VARIABLE WINDOW 53 operator ha
Page 63 and 64: 2.6. VARIABLE WINDOW 55 aspect rati
Page 65 and 66: 2.7. GRAPHICS WINDOW 57 Figure 2.38
Page 67 and 68: Chapter 3 Language The following ch
Page 69 and 70: 3.2. CONTROL TYPES AND CONSTANTS 61
Page 71 and 72: 3.4. OPERATIONS ON ICONIC OBJECTS 6
Page 73 and 74: 3.5. EXPRESSIONS FOR INPUT CONTROL
Page 85 and 86: 3.6. RESERVED WORDS 77 ÓÖ, ÜÓÖ
Page 87 and 88: 3.8. LIMITATIONS 79 In the followin
Page 89 and 90: Chapter 4 Code Generation The idea
Page 91 and 92: 4.1. CODE GENERATION FOR C++ 83 Ì
Page 93 and 94: 4.1. CODE GENERATION FOR C++ 85 tha
Page 95 and 96: 4.2. CODE GENERATION FOR VISUAL BAS
Page 97 and 98: 4.3. CODE GENERATION FOR C 89 4.3 C
Page 99 and 100: 4.4. GENERAL ASPECTS OF CODE GENERA
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Chapter 5 Program Examples This cha
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5.2. CAPILLARY VESSEL 95 ÚÐÓ×Û
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5.2. CAPILLARY VESSEL 97 Figure 5.3
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5.3. PARTICLES 99 each. Now it is e
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5.4. ANNUAL RINGS 101 ÚÐÖÛÒÓ
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5.5. BONDING 103 Figure 5.9: Exampl
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5.7. DEVICES 105 Figure 5.11: Calib
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5.7. DEVICES 107 Figure 5.13: Resis
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5.8. CELL WALLS 109 Figure 5.15: Mi
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5.10. EXCEPTION HANDLING 111 Figure
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5.11. ROAD SCENE 113 any case. All
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5.11. ROAD SCENE 115 tures. Hence a
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Chapter 6 Miscellaneous This chapte
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6.5. RESTRICTIONS 119 Figure 6.1: E
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2 APPENDIX A. CONTROL ÌÙÔÐ½
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4 APPENDIX A. CONTROL Attention For
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6 APPENDIX A. CONTROL Result retur
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8 APPENDIX A. CONTROL ÚÙÔØÛÒ
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10 APPENDIX A. CONTROL HDevelop / 2
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12 APPENDIX B. DEVELOP Attention If
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14 APPENDIX B. DEVELOP Ú ÓÔÒ Û
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16 APPENDIX B. DEVELOP Ú Ò×ÔØ
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18 APPENDIX B. DEVELOP Parallelizat
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20 APPENDIX B. DEVELOP º ÀØ (inp
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22 APPENDIX B. DEVELOP ’black’
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24 APPENDIX B. DEVELOP Parameter º
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26 APPENDIX B. DEVELOP Parameter º
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28 APPENDIX B. DEVELOP If ÊÓÛ½
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30 APPENDIX B. DEVELOP Ú ×Ø ÛÒ
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32 APPENDIX B. DEVELOP Possible Suc
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34 APPENDIX B. DEVELOP See Also Ú
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36 APPENDIX B. DEVELOP HDevelop / 2
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38 APPENDIX C. GLOSSARY Operator wi
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40 Index Ú ×Ø ÔÖØ, 27, 39 Ú
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42 Index Operator Data base, 37 Nam
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44 Index HDevelop / 2000-11-16
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