As far as I can tell you are trying to maintain most of the
information of the scanned image, just enhance the letters.
First, without seeing the actual image I'm not sure if this can help
you, but maybe it will give you some ideas.
What I would do is (I'm writing this just remembering, some options
may be named differently):
- Duplicate the layer
- Play with the level tool (in the new layer) until your text is
all clear (no matter the images)
- For this you can press the left mouse button on any point of
the image to see what part or the historigram belongs to what
part of the image, so you can make the letters black (down)
and the rest white (up)
- You probably want to change the level from "smooth" to
"freehand"
- Add layer mask -> Grayscale copy of the image
- Invert the mask
- Paly with the level tool (but now in the recently created mask)
until you are happy with the result
- Export/Save or merge layers and there you have
Also instead of playing with the levels tool you can just use
posterize, but I usually don't like the hard edges that you get with
this.
Hope that the explanation was not too bad and can help you at least
something and good luck!
- mIKEL
On 11/12/11 21:07, Arbol One wrote:
I have a png file that has some letters,
the letters are blurry after the scanning and I would like to
enhance the tone of the letters, the letters are black and the
document is in many colours but black. How can I isolate the
black, thus the letters, from all the other colours and then
enhance the colour black so that the letters are thick
and solid.
Thanks in advance.
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