Jmagick how to add image on an existing image

Jmagick how to add image on an existing image

hi,

I am using Jmagick library in my swing application I want to add an image (say logo) on an existing image. can any one explains how ?

Thanks.

View Answers

August 23, 2012 at 12:52 PM

hi,

In Jmagick you can use the following code to add image on an existing image

You can give one of the following value according to opacity you want to give your image

  1. CompositeOperator.OverlayCompositeOp

  2. CompositeOperator.SoftLightCompositeOp

  3. CompositeOperator.HardLightCompositeOp

For providing the custom opacity you can constitute the following method along with these above value

transparentImage(PixelPacket.queryColorDatabase("ColorName"),int opacity value (0-65535)); Here 0 specifies the fully opacity and 65535 specifies the fully opaque.

Following code may help you to understand how to use these methods and values in to adding an image to an existing image.

ImageInfo ii = new ImageInfo("abc.jpg");
MagickImage mi = new MagickImage(ii);

ImageInfo logoImage = new ImageInfo("logo.jpg");
logoImage.setSize("120 * 60");
MagickImage logo = new MagickImage(logoImage);
logo.transparentImage(PixelPacket.queryColorDatabase("white"),0);
mi.compositeImage(CompositeOperator.OverlayCompositeOp, logo, 120, 80);
mi.setFileName("newImage.jpg");
mi.writeImage(ii);

July 23, 2015 at 12:13 AM

Hi,

the above code overlays transparent image over an existing image. Please tell me how to overlay opaque image over an existing image.

Thanks









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