Devesprit.ImageProcessor & Devesprit.ImageServer
FocalTintEffect

Description:

This processor creates tinted look of an image with a focal point represented by a shape. Devesprit.ImageProcessor implements a very flexible and powerful Focal Tint effect allowing you to define an area/region represented by a shape on which the FocalTint effect takes place. Given that, you can get focal soften effects like rectangles, ovals, stars of any number of points, polygons of any number of sides and much more. You can specify whether the area/region for focus should fit the target element's size or be of a fixed size. You can control the area/region location as well. In addition, reversing the effect is also supported.
The smoothing tint effect is determined based on how the shape's fill is set up. For example, if you set up the shape's fill to be a solid color, then no smoothing tint effect will be produced. However, if you set up the shape's fill to be a gradient colors and one of those colors is transparent or contains some transparency (through out Alpha color channel), then a smoothing tint effect will take place.

Method Declaration
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public static ImageFactory FocalTintEffect(this ImageFactory imageFactory, FocalTintSettings settings)

FocalTintSettings:

Color

Set the color used for tinting (System.Drawing.Color).

Location

Set how the area/region's shape used for creating the colored focal point will be positioned. If it is Center, then the area/region will be centered on the target Element; otherwise, the area/region's location must be specified by X and Y properties.

PathPoints

Set a string containing pairs of point describing the path for creating the colored focal point. Use it for performing Path or RoundedPath focal shapes.

PolygonSides

Set the number of sides of the polygon shape used for creating the colored focal point.

ReverseEffect

Set whether focal grayscale effect should be reversed.

Roundness

Set the shape roundness used for creating the colored focal point.

Shape

Set the area/region's shape used for creating the colored focal point.

(Devesprit.ImageProcessor.Plugins.AdvancedEffects.FocalShape)

ShapeFill

The shape's fill used for creating the colored focal point. (see Fill Class)

Sizing

Set the area/region's size type used for creating the colored focal point. If it is Fit, then the area/region's size will automatically fit to the target Element's size; otherwise, the area/region's size must be specified by Width and Height properties.

(Devesprit.ImageProcessor.Plugins.AdvancedEffects.FocalSizing)

StarInnerRadiusPercentage

Set the inner radius percentage of the star shape used for creating the colored focal point.

StarPoints

Set the number of points of the star shape used for creating the colored focal point.

Height

Set the height of the focal shape area/region.

Width

Set the width of the focal shape area/region.

X

Set the x-coordinate of the left side of the focal shape area/region.

Y

Set the y-coordinate of the top side of the focal shape area/region.

Assembly:

Devesprit.ImageProcessor.Plugins.AdvancedEffects.dll

Example
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new ImageFactory().Load(@"My-Image-Path").FocalTintEffect(new FocalTintSettings()
 {
   Shape = FocalShape.Oval,
   ShapeFill =
   {
      Type = FillType.Gradient,
      GradientShape = GradientShape.Path,
      GradientColor1 = Color.Transparent,
      GradientColor2 = Color.Black
   }
 });

Original

 

 

Result

 

See Also