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IMAGE ACQUISITION TOOLBOX 3
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MATLAB IMAGE ACQUISITION TOOLBOX 3 Guida Utente Pagina 325
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Vid
e
o
In
p
u
t
Ob
j
e
c
ts
Acquisition
Source
SelectedSourceName
Specify
name
of
currently
selected
video
source
Source
Indicate
video
source
objects
associated
w
ith
v id eo
inpu t
object
13-5
1
2
...
320
321
322
323
324
325
326
327
328
329
330
...
407
408
Image Acquisition
1
Toolbox 3
1
User’s Guide
1
508-647-7000 (Phone)
2
508-647-7001 (Fax)
2
The MathWorks, Inc
2
3 Apple Hill Drive
2
Natick, MA 01760-2098
2
Revision History
3
Contents
5
ConnectingtoHardware
7
WorkingwithAcquiredImageData
9
Troubleshooting
11
Functions — By Category
12
........................ A-3
14
Getting Started
15
1 Getting Started
16
Related Products
17
Supported Hardware
17
V iewing Object Properties
27
Setting Object Properties
29
Running the Example
31
Toolbox Compone
37
2 Introduction
38
Setting Up Frame Grabbers
39
Previewing Data
42
Each time
51
Using the Image Acquisition
53
Tool GUI
53
Opening the Tool
54
Parts of the Desktop
54
Selecting Your Device
57
Adding New Hardware
58
Using a Camera File
59
Setting Frames Per Trigger
61
Setting the Color Space
62
Using the Region of Interest
62
Logging Your Data
65
Memory Logging
66
Disk Logging
66
Setting Up Triggering
67
Selecting the Trigger Type
68
The Preview Window
71
Acquiring Data
73
4 and Number of
74
Immediate,thetool
75
1 or any
75
If Images Are Blurry or Dark
76
Previewing and Acquiring Data
77
Expor ting Data
78
Exporting Data
79
3 Click Save
80
4 Click Save
83
Connecting to Hardware
85
Getting Hardware Information
87
Getting Hardware Inform ation
89
TypesofObjects
93
1 Thetitleofthesum
95
Using a Video Format String
97
4 Connecting to Hardware
100
Setting Trigger Properties
107
Acquiring Image Data
115
5 Acqu iring Image Data
116
Data Logging
117
Specifying the Trigger Type
123
Example: Using a
125
Manual T
127
TriggerRep eat property
133
Example:
137
Acquiring 100 Frames
137
Determining How
139
Many Frames Are Available
139
Specifying Multiple Triggers
143
Using the wait Function
145
Managing Memory Usage
149
Freeing Memory
151
Logging Image Data to Disk
154
Logging Data to a Disk File
155
Example: Logging Data to Disk
157
Working with Acquired
161
Image Data
161
Over view
162
Overview
163
FramesPerTrigger property:
165
FramesPerTrigger property
165
FramesPerTrigger property to
165
Frames Returned by peekdata
167
FramesAvailable property
171
Understanding Image Data
172
ROIs and Image Dimensions
173
Specifying the Color Space
177
Viewing Acquired Data
179
Retrieving Timing Information
180
Using Events and Callbacks
185
7 Using Events and Callbacks
186
Event Types
188
Retrieving Event Information
191
Data Fields for Timer Events
193
3 Acquir
201
Using the From Video
205
DeviceBlockinSimulink
205
Opening the Block Librar y
207
Introduction
209
Step 2: Open a Mod
210
Step 3: Drag the F
211
Step 4: Drag Othe
212
Step 5: Connect t
214
Step 7: Run the Si
216
Adding Support for
217
Additional Hardware
217
For More Information
219
10 Troubleshooting
222
IFC Devices
225
Sapera Devices
227
Installing the Driver
231
6 Select Camer
233
To exit
235
2 If your hardw
237
2 Select Start
239
Diagnostic Tool
245
Function
247
Objects G eneral Purpose
250
Triggering
251
11 Functions — By C atego ry
252
Functions — Alphabetical
255
Syntax clear obj
256
Syntax closepreview(obj)
257
Syntax delete(obj)
258
Syntax obj
259
See Also videoinput
260
Syntax flushdata(obj)
261
Syntax get(obj)
262
See Also set, videoinput
262
Syntax data = getdata(obj)
263
, imaqhelp, peekdata
269
Syntax imaqfind
270
See Also get, videoinput
271
Syntax imaqhelp
272
See Also propinfo
273
Syntax out = imaqhwinfo
274
See Also imaqhelp, im aqreset
277
Syntax mem = imaqmem
278
, getdata, vide oinp ut
280
Syntax imaqmontage(frames)
281
Create an axes object
282
Syntax imaqreset
283
See Also delete, vid eoinput
283
Syntax imaqtool
284
Syntax bool = islogging(obj )
285
Properties
286
Syntax bool = isrunning(obj )
287
Syntax bool = isvalid(obj)
289
Syntax load filename
290
Syntax preview(obj)
297
Syntax out = propinfo(obj)
301
See Also imaqhelp
302
Syntax save filename
303
Syntax set(obj)
304
Syntax start(obj)
306
Syntax stop(obj)
308
Syntax stoppreview(obj)
309
Purpose Initiate data logging
310
Syntax trigger(obj)
310
Examples Example 1
312
Syntax triggerinfo(obj)
314
, trigg erconfig
315
, imaqfind, isvalid, preview
318
Syntax wait(obj)
319
Properties — By Category
321
Video Input Objects
322
Callback
323
13 Properties — By Category
324
Acquisition Source
325
Video Source Objects
326
Properties — Alphabetical
327
BayerSensorAlignment
328
DeviceID
330
DiskLogger
332
DiskLoggerFrameCount
334
ErrorFcn
335
EventLog
336
FrameGrabInter val
338
FrameGrabInterval
339
FramesAcquired
340
FramesAcquiredFcn
341
FramesAcquiredFcnCount
342
FramesAvailable
343
FramesPerTrigger
344
InitialTriggerTime
345
See Also Functions
347
LoggingMode
348
Characteristics
350
NumberOfBands
351
Previewing
354
ReturnedColorSpace
355
ROIPosition
356
See Also Properties
358
Selected
359
SelectedSourceName
361
SourceName
364
Star tFcn
365
TimerFcn
369
TimerPeriod
370
TriggerCondition
371
TriggerFcn
373
TriggerFrameDelay
374
TriggerRepeat
376
TriggersExecuted
377
TriggerSource
378
TriggerType
379
UserData
382
V ideoFormat
383
VideoFormat
384
VideoResolution
385
Blocks — Alphabetical List
387
From Video Device
388
From Video D evice
389
Video Input (Obsolete)
395
Examples
397
Fundamentals
398
Image Acquisition Tool (GUI)
398
Working with Acquired Data
399
Events and Callbacks
399
A Examples
400
VideoFormat property 14-57
408
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