Export Code from Image Acquisition Explorer

The Image Acquisition Explorer app allows you to generate a MATLAB^® live script that includes the device and acquisition configurations that you currently have in the app. Click the Export button in the app toolstrip to select Generate Snapshot Script or Generate Record Script. Both these options create and open a live script that contains code for the current device configuration in the app. You can edit and save the generated live script as necessary for your application.

Export section and its options in Image Acquisition Explorer

The Generate Snapshot Script option creates and opens a live script that contains code for connecting to your device, configuring its properties, capturing a single frame, and viewing a snapshot of the captured image.
The Generate Record Script option creates and opens a live script that contains code for connecting to your device, configuring its properties, recording frames, and viewing the recorded video.

Connect and Configure

The generated live script contains the following sections for connection and configuration, with code similar to the following examples.

Connect to Device — Creates a connection to the selected device and specified Video Format using the videoinput function.
```
v = videoinput("winvideo", 1, "YUY2_1280x720");
```
Configure Device Properties — Defines device properties that you select in the app, including Color Space, Sensor Alignment, and Region of Interest. If you do not edit any of these parameters, this section is not in the live script.
```
v.ReturnedColorspace = "rgb";
```
Configure Device-Specific Properties — Defines device-specific properties that you specified in the Device Properties panel of the app. If you do not make any changes to these parameters, this section is not in the live script.
```
src = getselectedsource(v);
src.Exposure = 1;
```
If you execute a GigE Vision^® or GenICam™ GenTL command from the Device Properties panel of the app, this section also generates the code for the command selection and execution.
```
src = getselectedsource(v);
src.SequencerConfigurationMode = "On";
src.SequencerFeatureSelector = "ExposureTime";
executeCommand(src,"sequenceSetSave");
```

Generate Snapshot Script

If you select Generate Snapshot Script, the live script contains the following additional sections, with examples of code.

Capture Image — Captures a single frame and saves it to the workspace as the variable specified in the Logging section. If you selected File in the Logging section, this section also does the following:
- Defines the file name to save as and location to save to.
- Saves the captured frame to a file using the imwrite function.
- Specifies the image file configuration settings that you set in Logging, such as file format and quality, as name-value arguments in imwrite.
```
image1 = getsnapshot(v);

% Set the desired file location and name.
filelocation = "C:\Users\user";
filename = "snapshot1.jpg";
fullFilename = fullfile(filelocation, filename);

% Write image data to file.
imwrite(image1, fullFilename, "jpg", "Quality", 25, "BitDepth", 12);
```
View Snapshot — Displays the captured image using the imshow function.
```
imageData = imread(fullFilename);
f = figure;
ax = axes(f);
imshow(imageData, "Parent", ax);
```

Generate Record Script

If you select Generate Record Script the live script contains the following additional sections, with examples of code.

Configure File Logging — Specifies video file logging settings by doing the following:
- Defines the file name to save as and location to save to.
- Specifies the video file configuration settings that you set in Logging, such as file format and quality, using VideoWriter.
- Configures the videoinput object to log to disk.
If you do not select File in Logging, this section is not in the live script.
```
filelocation = "C:\Users\user";
filename = "recording1.mp4";
fullFilename = fullfile(filelocation, filename);

% Create and configure the video writer
logfile = VideoWriter(fullFilename, "MPEG-4");
logfile.FrameRate = 15;
logfile.Quality = 25;

% Configure the device to log to disk using the video writer
v.LoggingMode = "disk";
v.DiskLogger = logfile;
```
Configure Triggering — Specifies the hardware trigger settings Number of Triggers, Frames per Trigger, Trigger Source, and Trigger Condition that you set in the Hardware Trigger panel. If you do not select Hardware Trigger in Record, this section is not in the live script.
```
framesPerTrigger = 4;
numTriggers = 2;
triggerCondition = "risingEdge";
triggerSource = "TTL";

triggerconfig(v, "hardware", triggerCondition, triggerSource);
v.FramesPerTrigger = framesPerTrigger;
v.TriggerRepeat = numTriggers - 1;
```
Record — Records image data based on the recording mode selected in the Record section and saves it using the settings specified in the Logging section.
- If you select Finite and frame(s), this section is called Record Video for Set Number of Frames and records image data for the specified number of frames.
  numFrames = 10; v.FramesPerTrigger = numFrames; start(v); wait(v); stop(v); recording1 = getdata(v, numFrames);
- If you select Finite and second(s), this section is called Record Video for Set Number of Seconds and records image data for the specified number of seconds.
  numSeconds = 10; v.FramesPerTrigger = Inf; start(v); pause(numSeconds); stop(v); recording1 = getdata(v, v.FramesAvailable);
- If you select Continuous, this section is called Record Continuous Video Data and records image data continuously and requires you to press Enter to stop recording.
  v.FramesPerTrigger = Inf; start(v); % Use INPUT to pause before ending acquisition. input("Press ENTER to end acquisition."); stop(v); recording1 = getdata(v, v.FramesAvailable);
- If you select Hardware Trigger, this section is called Record with Hardware Trigger and records image data using a hardware trigger.
  start(v); wait(v); stop(v); recording1 = getdata(v, framesPerTrigger * numTriggers);
Show Recording — Displays the recorded video using the implay function.
```
reader = VideoReader(fullFilename);
videoData = read(reader);
implay(videoData);
```

Clean Up

The generated live script contains the following section related to cleaning up the workspace.

Clean Up — Disconnects from the device and clears it from the workspace by using the delete and clear functions.
```
delete(v)
clear src v
```