Neeta Dsouza answered . 2024-04-27 13:25:31

imaqmex('feature', '-previewFullBitDepth', true);

You can also configure the preview axes CDataMapping and CLim properties.

vid = videoinput('hamamatsu', 1);
h = preview(vid); 
a = ancestor(h, 'axes');
set(h, 'CDataMapping', 'scaled');
% Modify the following numbers to reflect the actual limits of the data
returned by the camera.
% For example the limit for 12-bit camera would be [0 4095].
set(a, 'CLim', [0 4095]);

Other approaches: * To preview the input from the camera, use the IMAQMONTAGE function. This function takes a snapshot of the video feed and displays the image in a MATLAB figure window. For example:

imaqmontage(vid)

• After the videoinput object has been started and the GETDATA function has been used to move the data into the MATLAB workspace, scale the data (based on the bit depth of the camera). The resulting images should no longer look dark. You can lookup the bit depth of the camera in the camera manual or on the manufacturers web site. 

Not satisfied with the answer ?? ASK NOW