Posted by
dscho on
Sep 18, 2006; 10:32am
URL: http://imagej.273.s1.nabble.com/Convert-a-textfile-to-an-image-HELP-tp3701578p3701579.html
Hi,
On Mon, 18 Sep 2006, Liisa Palomaa wrote:
> I need some help! I wonder if anyone knows if it is possible to
> convert textfiles to images in ImageJ.
You probably want to write a macro which uses File.openAsString(path), and
the split() function.
> 1. Read a single textfile (size 10*250) and convert to image
This would be done by
-- snip --
fileName = "image.txt";
width = 10;
height = 250;
newImage(fileName, "8-bit", width, height, 1);
contents = File.openAsString(fileName);
lines = split(contents, "\n");
for (i = 0; i < height; i++) {
columns = split(lines[i], " ");
for (j = 0; j < 10; j++)
setPixel(j, i, columns[j]);
}
-- snap --
> 2. Read another textfile (size 3*30) and convert to image
see above
> 3. Match image 1 and image 2. Resize to a special size (20*500).
I do not know exactly what you mean by "match". Care to explain?
> 4. Take the images from step 3 and combine as channels in a single
> image. (Maybe I need to do this and the last step in Photoshop)
That is easy in ImageJ, too.
> 5. Read in RGB data from RGB images (for the same board that the
> textfiles are from) and create a image and merge to a final image.
You can even do that in a macro!
I think that it would help you most if you just went through
http://rsb.info.nih.gov/ij/developer/macro/macros.htmland then through some example macros at
http://rsb.info.nih.gov/ij/macros/like InvertImage.txt.
Hth,
Dscho