EFFECTS
EMBOSS
An Opalizing Effect
an Image Magick Tute by Florence W Deems |
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Opalizing is the name I chose for a special color effect we get with many images, such as the title image. This effect simulates carved opals. You use only three simple steps:
- Input image into any Image Magick of your choice.
- Effects/Emboss @ 5x5
- Comp/Difference with Original
- Comp/Exclusion with Original
Sometimes you can stop with the Comp/Difference step, as this will give an effect similar to carved Australian Fire Opal. The types of images this technique works best with are those with a wide range of medium and light tones. Areas of dark tones won't "opalize" very well.
EXAMPLES
COYOTE SUMMER
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| Original |
Emboss 5x5 |
& Comp/Diff |
&& Comp/Excl |
MOUNTAIN
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| Original |
Emboss @ 5x5 |
& Comp/Diff |
&& Comp/Excl |
STORM SISTERS
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| Original |
Emboss @ 5x5 |
& Comp/Diff |
&& Comp/Excl |
A KISS
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| Original |
Emboss @ 5x5 |
& Comp/Diff |
&& Comp/Excl |
Sometimes, as in the example "Mountain," you might want to stop with the Comp/Difference step. But otherwise, you'll probably want to do the Comp/Exclusion step, too. In "A Kiss," the dark areas stand out. This reminds me of an opal with dark inclusions.
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