Photoshop插件-锐化-USM-脚本开发-PS插件

  PS是一款栅格图像编辑软件，模块众多。提供了脚本，动态连接库等多种扩展机制，本文演示如何通过脚本实现USM锐化相关功能，展示从互联网收集而来的一个小插件，供大家学习交流，请勿用于商业用途。 1.插件界面

  本文界面是一系列功能的一部分，将逐步展示，但是功能界面是共同的，如下图所示：

2.关键代码

  大家可通过源代码阅读，来掌握相关技巧，源代码如下：

if (app) { try { Select(); } catch (e) { } } ; function Select() { { function UnsharpMask() { // Unsharp Mask function step1(enabled, withDialog) { if (enabled != undefined && !enabled) return; var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO); var desc1 = new ActionDescriptor(); desc1.putUnitDouble(PSKey.Amount, PSUnit.Percent, 100); desc1.putUnitDouble(PSKey.Radius, PSUnit.Pixels, 1); desc1.putInteger(PSKey.Threshold, 0); executeAction(sTID('unsharpMask'), desc1, dialogMode); }; step1(true, true); // Unsharp Mask }; cTID = function (s) { return app.charIDToTypeID(s); }; sTID = function (s) { return app.stringIDToTypeID(s); }; // // UnsharpMask.loadSymbols //   Loading up the symbol definitions like this makes it possible //   to include several of these generated files in one master file //   provided a prefix is specified other than the default. It also //   skips the definitions if PSConstants has already been loaded. // UnsharpMask.loadSymbols = function () { var dbgLevel = $.level; $.level = 0; try { PSConstants; return; // only if PSConstants is defined } catch (e) { } finally { $.level = dbgLevel; } var needDefs = true; $.level = 0; try { PSClass; needDefs = false; } catch (e) { } finally { $.level = dbgLevel; } if (needDefs) { PSClass = function () { }; PSEnum = function () { }; PSEvent = function () { }; PSForm = function () { }; PSKey = function () { }; PSType = function () { }; PSUnit = function () { }; PSString = function () { }; } // We may still end up duplicating some of the following definitions // but at least we don't redefine PSClass, etc... and wipe out others PSClass.AdjustmentLayer = cTID('AdjL'); PSClass.Channel = cTID('Chnl'); PSClass.Curves = cTID('Crvs'); PSClass.CurvesAdjustment = cTID('CrvA'); PSClass.Layer = cTID('Lyr '); PSClass.Mask = cTID('Msk '); PSClass.Point = cTID('Pnt '); PSEnum.Blue = cTID('Bl  '); PSEnum.Composite = cTID('Cmps'); PSEnum.Luminosity = cTID('Lmns'); PSEnum.RGB = cTID('RGB '); PSEnum.Target = cTID('Trgt'); PSEnum.Violet = cTID('Vlt '); PSEvent.Invert = cTID('Invr'); PSEvent.Make = cTID('Mk  '); PSEvent.Select = cTID('slct'); PSEvent.Set = cTID('setd'); PSKey.Adjustment = cTID('Adjs'); PSKey.Amount = cTID('Amnt'); PSKey.Color = cTID('Clr '); PSKey.Curve = cTID('Crv '); PSKey.Horizontal = cTID('Hrzn'); PSKey.MakeVisible = cTID('MkVs'); PSKey.Mode = cTID('Md  '); PSKey.Name = cTID('Nm  '); PSKey.Opacity = cTID('Opct'); PSKey.Radius = cTID('Rds '); PSKey.Threshold = cTID('Thsh'); PSKey.To = cTID('T   '); PSKey.Type = cTID('Type'); PSKey.Using = cTID('Usng'); PSKey.Vertical = cTID('Vrtc'); PSString.Null = sTID('null'); PSString.addToSelectionContinuous = sTID('addToSelectionContinuous'); PSString.presetKind = sTID('presetKind'); PSString.presetKindDefault = sTID('presetKindDefault'); PSString.presetKindType = sTID('presetKindType'); PSString.selectionModifier = sTID('selectionModifier'); PSString.selectionModifierType = sTID('selectionModifierType'); PSType.BlendMode = cTID('BlnM'); PSType.Ordinal = cTID('Ordn'); PSUnit.Percent = cTID('#Prc'); PSUnit.Pixels = cTID('#Pxl'); }; UnsharpMask.loadSymbols(); // load up our symbols UnsharpMask.main = function () { UnsharpMask(); }; UnsharpMask.main(); } }; 

3.代码转执行

  使用记事本或者notepad++等文本编辑器，将代码拷贝至文本文件，然后修改后缀名为js或者jsx，最后再PS软件菜单文件》脚本》浏览，点执行即可，也可以将脚本放在预设文件夹内，会显示再脚本下的二级子菜单。如下图所示：

4.作者答疑

  如有疑问，请留言。