[Image->Composite] Detail - Lasso Reference

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▼ [Image->Composite]


Tag Link	[Image->Composite]	Category	Image
Type	Member	Source Available	Yes
Support	Preferred	Version	7.0
Change	Unchanged	Data Source	Any
Output Type	None	Security	None
Implementation	LCAPI	Sets	Lasso 8.5, Lasso 8.0, Lasso 7.0

▼ Description

Composites a second image onto the current image. Requires a second Lasso image variable to be composited.

▼ Syntax

[Image Variable->(Composite: Image Variable #2, -Op='Composite Operator', -Left=Integer, -Top=Integer)]

▼ Parameters

Optional Parameters
-Op	Specifies the composite method which affects how the second image is applied to the first image (a list of operators is shown below). Over – The result is the union of the the two image shapes with the composite image obscuring the image in the region of overlap. In – The result is the first image cut by the shape of the second image. None of the second image data is included in the result. Out – The result is the second image cut by the shape of the first image. None of the first image data is included in the result. Plus – The result is the sum of the raw image data where the color-level extremes are limited by the maximum values available in each image. Minus – The result is the subtraction of the raw image data where the color-level extremes are limited by the minimum values available in each image. Add – The result is the sum of the raw image data without color-level limitations. Subtract – The result is the subtraction of the raw image data without color-level limitations. Difference – Returns the difference between two images. This is useful for comparing two very similar images. Bumpmap – The resulting image is shaded by the second image. CopyRed – The resulting image is the red layer in the image replaced with the red layer in the second image. CopyGreen – The resulting image is the green layer in the image replaced with the green layer in the second image. CopyBlue – The resulting image is the blue layer in the image replaced with the blue layer in the second image. CopyOpacity – The resulting image is the opaque layer in the image replaced with the opaque layer in the second image. Displace – Displaces part of the first image where the second image is overlaid. Threshold – Only colors in the second image that are darker than the colors in the first image are overlaid. Darken – Only dark colors in the second image are overlaid. Lighten – Only light colors in the second image are overlaid. Colorize – Only base spectrum colors in the second image are overlaid. Hue – Only the hue of the second image is overlaid. Saturate – Only the saturation of the second image is overlaid. Luminize – Only the luminousity of the the second image is overlaid. Modulate – Has the effect of Hue, Saturate, and Luminize functions applied at the same time.
-Left	Specifies the offset of the second image from the left side of the first image in integer pixels.
-Top	Specifies the offset of the second image from the top of the first image in integer pixels.
-Opacity	Specifies the opacity of the composited second image, where 0 is fully opaque and 1.0 is fully transparent.

▼ Examples

To overlay an image on top of another image:

Use the [Image->Composite] tag to add a defined image variable to a second defined image variable. The following example adds image2.jpg offset by five pixels in the upper left corner of image1.jpg.

[Var: 'MyImage1' =(Image: '/images/image1.jpg')]
[Var: 'MyImage2' =(Image: '/images/image2.jpg')]
[$MyImage1->(Composite: $MyImage2, -Left=5, -Top=5)]
[$MyImage1->(Save: '/images/image1.jpg')]

To add a watermark to an image:

Use the [Image->Composite] tag with the -Opacity parameter to add a defined image variable to a second defined image variable. The following example adds a mostly transparent version of image2.jpg to image1.jpg.

[Var: 'MyImage1' =(Image: '/images/image1.jpg')]
[Var: 'MyImage2' =(Image: '/images/image2.jpg')]
[$MyImage1->(Composite: $MyImage2, -Opacity=0.75)]
[$MyImage1->(Save: '/images/image1.jpg')]

To shade image with a second image:

Use the [Image->Composite] tag with the Bumpmap operator to shade a defined image variable over a second defined image variable.

[Var: 'MyImage1' =(Image: '/images/image1.jpg')]
[Var: 'MyImage2' =(Image: '/images/image2.jpg')]
[$MyImage1->(Composite: $MyImage2, -Op='Bumpmap')]
[$MyImage1->(Save: '/images/image1.jpg')]

To return the pixel difference between two images:

Use the [Image->Composite] tag with the Difference operator to return the pixel difference between two defined image variables.

[Var: 'MyImage1' =(Image: '/images/image1.jpg')]
[Var: 'MyImage2' =(Image: '/images/image2.jpg')]
[$MyImage1->(Composite: $MyImage2, -Op='Difference')]
[$MyImage1->(Save: '/images/image1.jpg')]

▼ Related Tags

Substitution
[Image_URL]
Process
[Image]
Member
[Image->AddComment] [Image->Annotate] [Image->Blur] [Image->ColorSpace] [Image->Comments] [Image->Contrast] [Image->Convert] [Image->Crop] [Image->Data] [Image->Depth]	[Image->Describe] [Image->Enhance] [Image->Execute] [Image->File] [Image->FlipH] [Image->FlipV] [Image->Format] [Image->Height] [Image->Histogram] [Image->Modulate]	[Image->Pixel] [Image->ResolutionH] [Image->ResolutionV] [Image->Rotate] [Image->Save] [Image->Scale] [Image->SetColorSpace] [Image->Sharpen] [Image->Width]

▼ Category Tags

Substitution
[IMG]