Deticting color picle in bmp

[erdccc]

I would like to have a VI report all x,y pixels coordinates in a bitmap file that are red in color. Have been trying to "hack" this by using flatten, un-flatten image, but not getting any where fast.

[VancouverRX7]

Have you tried to use Extract Single Color Plane from the IMAQ ACQ package? I believe you can extract all the red pixels from your bmp that way. I know I've done it for luminance on a 8 bit greyscale image, but the function's there for colour images.

Hope I steered you the right direction.

Regards,
Anderson

[nissen6]

You can split the 2D pixelmap array into three arrays based on color. Then the red pixels are the ones that are red and not green and not blue. I have attached a little example on how to do that. The output is a 2D array of booleans.

[erdccc]

That's nissen6!

Now I just need it to write to a text file of only the x,y cordinates of those red pixcles.

i.e.

1      1

24     12

27    14

[erdccc]

Well I can wirte it to a spreadsheet, but I am unable to figure out how to write it to a text file with the above format. Could someone help me out here?

[DuffmanSays]

I would suggest you take a look at the Write to Spreadsheet File VI. This VI will write to a text file using the specified delimiter. It might also help to take a look at the LabVIEW Example Finder. Specifically take a look in the Fundamentals >> File Input and Output folder in the Example Finder. Post back if these do not help!

Mike D.