GlowFilter method (Main Control)

C++ Builder example

Delphi example

 

Builder Syntax

int GlowFilter(unsigned uDim, unsigned uBright, unsigned uThreshold);

Delphi Syntax

Function GlowFilter (uDim: L_UINT; uBright: L_UINT; uThreshold: L_UINT): L_INT;

Overview

Refer to Applying Artistic Effects

Remarks

(Raster Pro and above toolkits) Makes the colored edges shine with a neon glow.

This method detects the edge pixels by comparing the values of the pixel with surrounding pixels and if the edge value (the difference between the surrounding pixels and the pixel being evaluated) is greater than the Threshold value, the pixel is an edge pixel. The method then multiplies the values for the edge pixels by the uBright Brightness factor.

This method supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.

For an example, see the following figure:

image\Glow_before.gif

The following figure shows the same bitmap, after the effect has been applied:

image\Glow_after.gif

To obtain this effect, the following settings were used with the method:

uDim = 15;

uBright = 5;

uThreshold = 0;

This method does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this method.

See Also

Elements:

AddNoise method, Emboss method, Mosaic method, MotionBlur method, Oilify method, Posterize method, RemoveRedeye method, Solarize method, Underlay method, BumpMap method, Cubism method, DrawStar method, FreePlaneBend method, FreeRadBend method, GlassEffect method, Dry method, LensFlare method, Light method, Ocean method, PlaneBend method, Plane method, SampleTarget method, Tunnel method, Bending method, Cylindrical method, FreeHandShear method, FreeHandWave method, Impressionist method, Pixelate method, Polar Method, Punch method, RadialBlur method, RadWave method, Ripple method, Spherize method, Swirl method, Wave method, Wind method, ZoomBlur method, ZoomWave method

Topics:

Raster Images: Filtering Images

 

Raster Images: Artistic Effects