用AS来调整图片的色调、亮度、灰度、饱和度、对比度、反相虽然不难,但因为涉及到ColorMatrixFilter的颜色矩阵的应用,使用起来有点麻烦,因此写了这个类ColorProperty。
这个类是对MovieClip类扩展,为MovieClip增加了这些属性:
- 色调:_color
- 亮度:_brightness
- 灰度:_grayscale
- 饱和度:_saturation
- 对比度:_contrast
- 反相:_invert
当然,你也可以改写这个类,使之成为一个新类,而不是扩展MovieClip类。
用法(与_width,_height用法一样):
import ColorProperty; ColorProperty.init(); //色调,用如0xFF0000的16进制 //img._color=0x333399; //trace(img._color); //亮度,取值范围为:-255~255 img._brightness = 100; //trace(img._brightness) //灰度,布尔值,true为灰度,false则反之。 //img._grayscale = true; //trace(img._grayscale); //饱和度,一般范围为:0~3为宜 //img._saturation = 3; //trace(img._saturation); //对比度,取值范围为:0~1 //img._contrast = 0.15; //反相,布尔值,true为反相,false则反之。 //trace(img._contrast); //img._invert=true;
代码如下:
/** * @Name:ColorProperty(MovieClip颜色属性) * 色调:_color,亮度:_brightness,灰度:_grayscale,饱和度:_saturation,对比度:_contrast,反相:_invert * @author:Flashlizi * @version:1.0 */ import flash.filters.ColorMatrixFilter; class ColorProperty { //_matrix是ColorMatrixFilter类的默认恒等矩阵 //_nRed,_nGreen,_nBlue是计算机图形颜色亮度的常量 //private static var _matrix : Array = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0]; private static var _nRed : Number = 0.3086; private static var _nGreen : Number = 0.6094; private static var _nBlue : Number = 0.0820; function ColorProperty () { } public static function init () { setColorProperty (); //色调Color MovieClip.prototype.addProperty ("_color", MovieClip.prototype.getColor, MovieClip.prototype.setColor); //亮度Brightness(取值范围为:-255~255) MovieClip.prototype.addProperty ("_brightness", MovieClip.prototype.getBrightness, MovieClip.prototype.setBrightness); //灰度Grayscale MovieClip.prototype.addProperty ("_grayscale", MovieClip.prototype.getGrayscale, MovieClip.prototype.setGrayscale); //饱和度Saturation(饱和度级别一般范围为:0~3) MovieClip.prototype.addProperty ("_saturation", MovieClip.prototype.getSaturation, MovieClip.prototype.setSaturation); //对比度Contrast(取值范围为:0~1) MovieClip.prototype.addProperty ("_contrast", MovieClip.prototype.getContrast, MovieClip.prototype.setContrast); //反相Invert MovieClip.prototype.addProperty ("_invert", MovieClip.prototype.getInvert, MovieClip.prototype.setInvert); } private static function setColorProperty () { //色调Color,getter&setter MovieClip.prototype.getColor = function () : Number { return MovieClip.prototype._color; } MovieClip.prototype.setColor = function (nColor : Number) : Void { var colorStr : String = nColor.toString (16); var nRed : Number = Number ("0x" + colorStr.slice (0, 2)); var nGreen : Number = Number ("0x" + colorStr.slice (2, 4)); var nBlue : Number = Number ("0x" + colorStr.slice (4, 6)); var Color_Matrix : Array = [1, 0, 0, 0, nRed, 0, 1, 0, 0, nGreen, 0, 0, 1, 0, nBlue, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Color_Matrix)]; MovieClip.prototype._color = nColor; } //亮度Brightness,getter&setter MovieClip.prototype.getBrightness = function () : Number { return MovieClip.prototype._brightness; } MovieClip.prototype.setBrightness = function (offset : Number) : Void { var Brightness_Matrix : Array = [1, 0, 0, 0, offset, 0, 1, 0, 0, offset, 0, 0, 1, 0, offset, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Brightness_Matrix)]; MovieClip.prototype._brightness = offset; } //灰度Grayscale,getter&setter MovieClip.prototype.getGrayscale = function () : Boolean { return MovieClip.prototype._grayscale; } MovieClip.prototype.setGrayscale = function (yes : Boolean) : Void { if (yes) { var Grayscale_Matrix : Array = [_nRed, _nGreen, _nBlue, 0, 0, _nRed, _nGreen, _nBlue, 0, 0, _nRed, _nGreen, _nBlue, 0, 0, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Grayscale_Matrix)]; MovieClip.prototype._grayscale = true; } else { MovieClip.prototype._grayscale = false; } } //饱和度Saturation,getter&setter MovieClip.prototype.getSaturation = function () : Number { return MovieClip.prototype._saturation; } MovieClip.prototype.setSaturation = function (nLevel : Number) : Void { var srcRa : Number = (1 - nLevel) * _nRed + nLevel; var srcGa : Number = (1 - nLevel) * _nGreen; var srcBa : Number = (1 - nLevel) * _nBlue; var srcRb : Number = (1 - nLevel) * _nRed; var srcGb : Number = (1 - nLevel) * _nGreen + nLevel; var srcBb : Number = (1 - nLevel) * _nBlue; var srcRc : Number = (1 - nLevel) * _nRed; var srcGc : Number = (1 - nLevel) * _nGreen; var srcBc : Number = (1 - nLevel) * _nBlue + nLevel; var Saturation_Matrix : Array = [srcRa, srcGa, srcBa, 0, 0, srcRb, srcGb, srcBb, 0, 0, srcRc, srcGc, srcBc, 0, 0, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Saturation_Matrix)]; MovieClip.prototype._saturation = nLevel; } //对比度Contrast,getter&setter MovieClip.prototype.getContrast = function () : Number { return MovieClip.prototype._contrast; } MovieClip.prototype.setContrast = function (nLevel : Number) : Void { var Scale : Number = nLevel * 11; var Offset : Number = 63.5 - (nLevel * 698.5); var Contrast_Matrix : Array = [Scale, 0, 0, 0, Offset, 0, Scale, 0, 0, Offset, 0, 0, Scale, 0, Offset, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Contrast_Matrix)]; MovieClip.prototype._contrast = nLevel; } //反相Invert,getter&setter MovieClip.prototype.getInvert = function () : Boolean { return MovieClip.prototype._invert; } MovieClip.prototype.setInvert = function (yes : Boolean) : Void { if (yes) { var Invert_Matrix : Array = [ - 1, 0, 0, 0, 255, 0, - 1, 0, 0, 255, 0, 0, - 1, 0, 255, 0, 0, 0, 1, 0]; this.filters = [new ColorMatrixFilter (Invert_Matrix)]; MovieClip.prototype._invert = true; } else { MovieClip.prototype._invert = false; } } } }
下载:ColorProperty.rar
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出处:蓝色理想
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