IMAQ: Getting the ranges of the Device Specific Properties

Hi everyone,

The question pertains to the Image Acquisition Toolbox. I'm interested in building a programmatic GUI, where I can have some sliders to control the basic settings like Contrast, Brightness, etc. For a script, what I have so far is the following:

clc; clear all; close all;
imaqreset;

% Setting up a couple of integers for device ID, and the resolution setting to use.
deviceIDToUse               = 2;
resolutionList_IDX          = 1;

dev_info                    = imaqhwinfo('winvideo',deviceIDToUse);
resolutionList              = dev_info.SupportedFormats;

% Choose the main device ID to use.

vid                         = videoinput(...
    'winvideo',     deviceIDToUse,...
    resolutionList{resolutionList_IDX});

src = getselectedsource(vid);

% Is there a way to get the 'ranges (e.g.: 0 - 255 for Brightness)' of the Device Specific Properties?
get(src)

One thing I cannot figure out is how I can get the ranges of the Device Specific Properties. I can access the values clicking the videosource variable in the workspace.

Would anyone have an idea on how I can access the ranges programmatically?

Thanks in advance.

Cheers

Answer 1

[Sid]

Actually, I think I figured it out. What you need is propinfo (documentation here .)

For example, from the above code, if you want to take the Brightness values (and maybe set up a slider to control it,) what you need is propinfo(src,'Brightness').

Hope this helps someone else in case you are interested in doing programmatic GUIs.