Legacy ImageMagick Discussions Archive

This is the code I have:

<?php
header('Content-type: image/png');

$oldColor = '#000000';
$baseColor = '#f9d9c4';

$base = new Imagick('assets/background.png');
$image = new Imagick('assets/lop-base2.png');
$color = new Imagick('assets/lop-color2.png');

$base->thumbnailImage(200, 0);
$color->thumbnailImage(200, 0);
$image->thumbnailImage(200, 0);

// Set base color
$color->paintOpaqueImage($oldColor, $baseColor, 255);
$color->paintTransparentImage($baseColor, .80, 100);

// Place layer on image
$base->compositeImage($image, Imagick::COMPOSITE_DEFAULT, 0, 0);
$base->compositeImage($color, Imagick::COMPOSITE_DEFAULT, 0, 0);

// Let's merge all layers (it is not mandatory).
$base->flattenImages();

echo $base;

?>

This has a background, layers the shading on top, and then layers the overlay on it (the base color of the bunny).

This is the overlay image ($color):

And this is what it produces:

It's not coloring the very edges because the edges are very soft and they aren't #000000.. I thought that's what the tolerance was for though (3rd parameter in paintOpaqueImage()).. I have it set at it's highest and it still won't color the edges softly... I can't have it all ridged like because of the style of the art and especially when the markings come into play. I just don't want it looking all pixeled. Is there anyway to solve this?

I've tried:

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$color->colorizeImage($baseColor, 100);
$color->paintTransparentImage($baseColor, .80, 100);

but that doesn't take opacity into consideration. It just ignores it. I tried putting .8 as the second parameter, but it colors the entire canvas and it doesn't do a good job since it's lifting from black to whatever the base color is... I need the base color 100% opacity and then drop that down to .80 opacity if you know what I'm trying to say..

Thank you.

I've also tried this:

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$color->colorizeImage($baseColor, 1);
$color->setImageOpacity(.80);

And it displays this:

I only wanted the silhouette part to be faded.. But instead the setImageOpacity gets rid of the silhouette completely and just fills the entire square and sets the opacity..

I don't do PHP, and don't fully understand what you want.

I think you want to turn that silhouette pink. It it currently entirely black, with varying alpha. The "-opaque" operator only works on fully opaque pixels. I expect paintOpaqueImage() is the same.

The "-colorize" operator does what you want.

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convert convert DRDNiwx.png -fill #f9d9c4 -colorize 100 b.png

I suppose the PHP function is colorizeImage().

Yeah if you look at my second example, I did do colorizeImage() and it works perfectly.. but unfortunately, the opacity doesn't work the way I wanted it to when I set it to .8 instead of 1. I have an image preview of what it's showing when I do that.

I'm looking to paint the entire thing at 100% of the base color and then lower the opacity. But I can't seem to do that...

EDIT:

I just tried doing this, but it won't color over it.. I was saying if I would have more control this way:

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$draw = new ImagickDraw();
$baseColor2 = new ImagickPixel($baseColor);
$draw->setFillColor($baseColor2);
$draw->setFillOpacity(.8);
$color->drawImage( $draw );

It just shows the black silhouette that was there initially.

EDIT:

Figured out something very important.... I noticed colorizeImage() wasn't coloring it the exact color I told it to.

Here is my code:

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$color->colorizeImage($baseColor, 1);
$color->paintTransparentImage('#f3b997', .8, 6553);

The $baseColor holds the value of '#f9d9c4' but I did a print screen and highlighted the color it was painting it and it was actually f3b997.. so now I don't really know what to do because I can't get the color image because I won't know the exact y and x values of where the color actually appears in the canvas.

Any further assistance in this area?

The image starts with opacity that varies from 0 to 100%. If you set it to 80%, then it will have a constant opacity of 80%.

Perhaps you want to multiply the opacity by 0.8. Then the opacity will vary between 0 and 80%. At the command line, this would be:

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... -channel A -evaluate multiply 0.8 +channel ...

snibgo.. thank you so much. I can't believe I didn't think of setting it at 80% opacity in Photoshop and just colorizing it from there.. I was going to go down the route I posted in my edit, but it's tough trying to get the color of the image without knowing the position.

I suspect (but I'm not sure) you can also get what you want by replacing

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$draw->setFillOpacity(.8);

... by ...

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$draw->evaluateImage (EVALUATE_MULTIPLY, .8, COLOR_OPACITY);

Legacy ImageMagick Discussions Archive

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