Display Gray Scale Image

[Tasnim]

Dear  Members,

Kindly, how can I display (write) a gray scale image in labview using Flatten Pixmap when my input image is a two dimensional matrix 64x64 gray scale.? 

[PsyenceFact · Accepted solution]

One way of doing it would be to wire an array representing a greyscale colour map to the colors input of Flatten Pixmap.vi.

[Tasnim]

Thank you very much for the useful answer..

in case I want to read a gray scale image in labview using Flatten Pixmap.vi or Unflatten Pixmap.vi when my input image is a two dimensional matrix 64x64 gray scale..is it the same way you answered me before?

Thank you 

[PsyenceFact · Accepted solution]

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@Tasnim wrote:

in case I want to read a gray scale image in labview using Flatten Pixmap.vi or Unflatten Pixmap.vi when my input image is a two dimensional matrix 64x64 gray scale..is it the same way you answered me before?

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If you want to read data from an image that is a 2D Picture Control, use Picture to Pixmap.vi then Unflatten Pixmap.vi to return a 2D array.  If your data is in the form of a LabVIEW matrix, it will have to be converted to a 2D array first as the picture functions do not operate on matrix data.

Andy

[Tasnim]

Thank you Andy for the useful answer

[Tasnim]

Dear Members,

Can anybody advise me how to display grayscale (.tiff) image size of 64x64 and the image depth is 8 in LabVIEW?

Thank you

Tasnim

[PsyenceFact]

Tasnim,

Just to check: do you mean read an existing TIFF file and display it in a picture control in LabVIEW?

Andy

[Tasnim]

yes, this is what I mean.

Thank you

[PsyenceFact]

I don't think LabVIEW has anything built-in to read TIFF files directly.  Many posts discuss use of the IMAQ image library or libtiff.

This post has a library which might help you, and there are a few threads on lavag.org discussing reading of TIFF files.

The easiest thing to do might be to convert losslessly to a suitable format that LabVIEW can handle using an external tool, but I have no experience of this.

Andy

[Tasnim]

ok thank u very much for the reply and help..

I will try to check it