Bitmap engraving

[Zlatko Kursar]

I had problem with Windows and I was reinstall it.
Now, when I engrave bitmap, laser engrave white area.
I checked in Photoshop this white and it is real white (#FFFFFF).
Does anyone know what is the problem?253734

[Mike Null]

Zlatko

I don't know the problem except that I've had it happen as well--usually with a printer. In Corel it is easy to remove the white background from the drawing. I imagine you have the same option in Photoshop.

[Dan Hintz]

Are you sure you're set to RGB and not CMYK?

[Steve Busey]

Zlatko,

Are you printing from Photoshop or Corel?

Corel may be seeing that as CMYK white, which does engrave like your example. :(

If you use Corel, use the color eyedropper tool and hover over the color you want to check - it will tell you if it's CMYK or RGB white.

253736

[Martin Boekers]

Sometimes the eyedropper can fool you if it is a "mottled" background. Go to levels under image adjustment
in PS and check the white end (toward the right) and see how the Histogram reads, if it shows anything on that
side move the slider a bit to the left, that will "clip" the white end a bit.

[Zlatko Kursar]

What will I do without you guys :)

Yes, the problem was in CMYK.