MATLAB Answers

14 bit grayscale movie/image acquisition

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Ronaldo on 3 Oct 2013
Edited: Walter Roberson on 7 Aug 2017
I have a camera which has 8-14 bit-depth. I want to get a grayscale movie and then convert the movie to 14-bit grayscale images. I want to use image acquisition toolbox of MATLAB to acquire the movie and then convert the movie to 14-bit images. My questions are: 1) Do I need to set any parameter in the camera to get 14-bit movie (and subsequently images) or 14 bit parameter should be set when I want to convert the movie to images?
2)How can I convert a movie to 14-bit images in MATLAB?

Answers (2)

Image Analyst
Image Analyst on 3 Oct 2013
Look at the parameters in imaqtool. Do you see anything there about selecting 14 bit mode?
Image Analyst
Image Analyst on 5 Oct 2013
This is what it says about that:
Setting the Color Space
Use Color Space on the General tabto set the color space for the selected device format. The ReturnedColor Space field has three options: rgb, YCbCr,and grayscale. The setting that is your deviceformat's default color space is shown as the default. You can usethe arrow to select another setting.
Additionally, if the default color space is grayscale,a value of bayer will be available in the ReturnedColor Space field for some devices, and the BayerSensor Alignment field will also be displayed. Use thedrop-down list to select one of the four possible sensor alignments.This feature allows the tool to demosaic Bayer patterns returned bythe hardware and interpolate them into standard RGB color images.For more information about this feature, see the BayerSensorAlignment propertyreference page.
So it appears that if you say grayscale it should be grayscale. If it's not then you'll have to call them. I don't have a camera on this computer so I can't try anything to help you.

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