coloring small regions using the paint bucket

[far]

Hello,

Photoshop CS5 Mac 10.7.5

I am trying to color in a specific region, but the regions are so small I am not sure what is the best and quickest way to do this.

I have attached a sample of what I trying to do.

As you can see there are many black lines, I am trying to fill in with white color the areas between the black lines. As you can see this region is very small.

Many thanks for any suggestions,

 

[Tom Mann]

It would help a lot if you could post a larger version of that image, ie, one with 2x or even 4x the number of pixels in each direction.

T

 

[Paul]

I used the replace colour tool.

 

[Tom Mann]

There are lots and lots of ways to do this. The approach I would use requires a some knowledge of using "curves", but it allows a lot of flexibility:

1. Put a curves layer on top of your original.

2. Adjust the shape of the curve to brighten the mid and bright tones.

3. Done.

HTH,

Tom M

 

[Paul]

Looks a bit grey Tom?

 

[Tom Mann]

That was intentional. I know he said "white", but if I crank up the brightening much more, I get too much stairstepping for my taste. Using a curve, he can adjust it to whatever tradeoff between brightness and stairstep artifacts suits him.

If he had supplied a higher rez version (or I created one for him), this wouldn't be an issue. Guessing his level of experience from the nature of his question, I didn't want to open the bag of worms related to up-rez'ing. ;-)

Cheers,

T

 

[Tom Mann]

In this version, I up-rez'ed the original image by 4x in Genuine Fractals, thresholded it, and then down-rez'ed it by 4x using ordinary bicubic. This allows considerably more brightening without really bad stairstep and halo artifacts.

T

 

[PseFrank]

I had a look at this and treated the image in the same way as I often treat the selection of a blown out sky that is partly covered by trees or bushes.



1. Open image and add an Adjustment Layer...Choosing Threshold from the menu.

2. I entered a threshold value of around 80.

3. Using the Magic Wand tool with Contiguous unchecked, click on the White background.

4. Reselect the image layer and with White selected as the foreground colour hit Alt > Backspace to fill the selection with white.

5. Hit Ctrl + D to delete the selection, and flatten the image before saving.

This is just another way of doing the job in hand.

Edit: Just to note that the image I have posted does have a touch of the jaggies, so maybe a bit of feather or smoothing could be applied to the selection. This worked best with a few more pixels added to the image.

 

[Hoogle]

What is your usage of this image do you need to overlay it on other images etc or is that just it a flat image.

If so why not just add a levels adjustment layer and bring up the whites 5 second job.