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Colorizing a true Black PNG


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I have searched the forums and found this question repeated many times but no answers to the question.

In PhotoShop's Hue and Saturation dialog there is a colorize check box that allows you to change black (not shades of gray) to a color.

I am attempting to make a black and white PNG into a bloodstain. The PhotoShop Tutorial on how this is done is at this link:-

http://photoshoptuto...hes/page-3.html

I have tried the plugin called "Conditional Hue and Saturation" but it cannot change either pure black or pure white.

Fiddling with Sephia to change black to a workable color first then using hue and saturation after just doesn't give the realistic look achieved in the example above.

If anyone could spare the time to explain how to get equal results to that shown in the tutorial linked above I would be very grateful.

By the way I just want to say how much I value this program, it has opened up an entirely new world of creativity for me that I didn't know existed. Thank you all, and especially the creators.

Below is an example of an image I made.

post-78637-129030352962_thumb.jpg

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Started with the black-and-white image from the tutorial.

Gradient Mapping plugin for the red tones.

------------------------------------------------------------

Grim Color Reaper plugin to eliminate the white.

Settings -

Color tolerance: 0.75

What color?: White

http://img121.imageshack.us/img121/1585/blackblood01.png

.

Edited by Sarkut
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Started with the black-and-white image from the tutorial.

Gradient Mapping plugin for the red tones.

------------------------------------------------------------

Grim Color Reaper plugin to eliminate the white.

Settings -

Color tolerance: 0.75

What color?: White

http://img121.imageshack.us/img121/1585/blackblood01.png

.

Thank you Sarkut.

My Gradient Mapping settings were:- HOT preset, Source:Luminosity, Offset:0, Wrap:Checked, Preserve Alpha:Checked

However my end result leaves visible yellow artifacts within the image, manipulating the color slider within Gradient Mapping allows me to reduce the yellow but it remains visible. If I eliminate it completely with either Gradient mapping or Color Reaper the image is unsatisfactory. See the image below.

Your result is pretty much perfect - what settings did you use in Gradient Mapping?

post-78637-129034590493_thumb.png

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