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高反差保留相关功能，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：

b406512784384e1aba88f02b52769098 (1).png

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：

//
//==================== HighPass Sharp copy ==============
//
function HighPassSharpcopy() {
    // Make
    function step1(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putClass(PSClass.Layer);
        desc1.putReference(PSString.Null, ref1);
        executeAction(PSEvent.Make, desc1, dialogMode);
    };

    // Merge Visible
    function step2(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        desc1.putBoolean(PSEvent.Duplicate, true);
        executeAction(sTID('mergeVisible'), desc1, dialogMode);
    };

    // Set
    function step3(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSString.Null, ref1);
        var desc2 = new ActionDescriptor();
        desc2.putString(PSKey.Name, "Base_Sharp");
        desc1.putObject(PSKey.To, PSClass.Layer, desc2);
        executeAction(PSEvent.Set, desc1, dialogMode);
    };

    // Layer Via Copy
    function step4(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        executeAction(sTID('copyToLayer'), undefined, dialogMode);
    };

    // Set
    function step5(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSString.Null, ref1);
        var desc2 = new ActionDescriptor();
        desc2.putEnumerated(PSKey.Mode, PSType.BlendMode, PSEnum.Overlay);
        desc1.putObject(PSKey.To, PSClass.Layer, desc2);
        executeAction(PSEvent.Set, desc1, dialogMode);
    };

    // High Pass
    function step6(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        desc1.putUnitDouble(PSKey.Radius, PSUnit.Pixels, 4);
        executeAction(sTID('highPass'), desc1, dialogMode);
    };

    // Set
    function step7(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSString.Null, ref1);
        var desc2 = new ActionDescriptor();
        desc2.putString(PSKey.Name, "Sharp_Image");
        desc1.putObject(PSKey.To, PSClass.Layer, desc2);
        executeAction(PSEvent.Set, desc1, dialogMode);
    };

    // Select
    function step8(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putName(PSClass.Layer, "Base_Sharp");
        desc1.putReference(PSString.Null, ref1);
        desc1.putEnumerated(PSString.selectionModifier, PSString.selectionModifierType, PSString.addToSelectionContinuous);
        desc1.putBoolean(PSKey.MakeVisible, false);
        executeAction(PSEvent.Select, desc1, dialogMode);
    };

    // Make
    function step9(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putClass(PSString.layerGroup);
        desc1.putReference(PSString.Null, ref1);
        var ref2 = new ActionReference();
        ref2.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSKey.From, ref2);
        executeAction(PSEvent.Make, desc1, dialogMode);
    };

    // Set
    function step10(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSString.Null, ref1);
        var desc2 = new ActionDescriptor();
        desc2.putString(PSKey.Name, "Image_Sharp");
        desc1.putObject(PSKey.To, PSClass.Layer, desc2);
        executeAction(PSEvent.Set, desc1, dialogMode);
    };

    // Set
    function step11(enabled, withDialog) {
        if (enabled != undefined && !enabled)
            return;
        var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
        var desc1 = new ActionDescriptor();
        var ref1 = new ActionReference();
        ref1.putEnumerated(PSClass.Layer, PSType.Ordinal, PSEnum.Target);
        desc1.putReference(PSString.Null, ref1);
        var desc2 = new ActionDescriptor();
        desc2.putEnumerated(PSKey.Color, PSKey.Color, PSEnum.Blue);
        desc1.putObject(PSKey.To, PSClass.Layer, desc2);
        executeAction(PSEvent.Set, desc1, dialogMode);
    };

    step1();      // Make
    step2();      // Merge Visible
    step3();      // Set
    step4();      // Layer Via Copy
    step5();      // Set
    step6(true, true);      // High Pass
    step7();      // Set
    step8();      // Select
    step9();      // Make
    step10();      // Set
    step11();      // Set
};


cTID = function (s) {
    return app.charIDToTypeID(s);
};
sTID = function (s) {
    return app.stringIDToTypeID(s);
};

//
// HighPassSharpcopy.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.
//
HighPassSharpcopy.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.HueSatAdjustmentV2 = cTID('Hst2');
    PSClass.HueSaturation = cTID('HStr');
    PSClass.Layer = cTID('Lyr ');
    PSClass.Mask = cTID('Msk ');
    PSClass.PaintbrushTool = cTID('PbTl');
    PSClass.Version = cTID('Vrsn');
    PSEnum.All = cTID('Al  ');
    PSEnum.Bicubic = cTID('Bcbc');
    PSEnum.Blue = cTID('Bl  ');
    PSEnum.Composite = cTID('Cmps');
    PSEnum.ForegroundColor = cTID('FrgC');
    PSEnum.GaussianDistribution = cTID('Gsn ');
    PSEnum.HideAll = cTID('HdAl');
    PSEnum.Multiply = cTID('Mltp');
    PSEnum.None = cTID('None');
    PSEnum.Normal = cTID('Nrml');
    PSEnum.Overlay = cTID('Ovrl');
    PSEnum.QCSAverage = cTID('Qcsa');
    PSEnum.RGB = cTID('RGB ');
    PSEnum.Target = cTID('Trgt');
    PSEvent.Delete = cTID('Dlt ');
    PSEvent.Duplicate = cTID('Dplc');
    PSEvent.Exchange = cTID('Exch');
    PSEvent.Fill = cTID('Fl  ');
    PSEvent.Hide = cTID('Hd  ');
    PSEvent.Make = cTID('Mk  ');
    PSEvent.Reset = cTID('Rset');
    PSEvent.Select = cTID('slct');
    PSEvent.Set = cTID('setd');
    PSEvent.Transform = cTID('Trnf');
    PSKey.Adjustment = cTID('Adjs');
    PSKey.At = cTID('At  ');
    PSKey.Color = cTID('Clr ');
    PSKey.Colorize = cTID('Clrz');
    PSKey.Colors = cTID('Clrs');
    PSKey.Distribution = cTID('Dstr');
    PSKey.FilterLayerRandomSeed = cTID('FlRs');
    PSKey.FreeTransformCenterState = cTID('FTcs');
    PSKey.From = cTID('From');
    PSKey.Height = cTID('Hght');
    PSKey.Horizontal = cTID('Hrzn');
    PSKey.Hue = cTID('H   ');
    PSKey.Interpolation = cTID('Intr');
    PSKey.Lightness = cTID('Lght');
    PSKey.MakeVisible = cTID('MkVs');
    PSKey.Mode = cTID('Md  ');
    PSKey.Monochromatic = cTID('Mnch');
    PSKey.Name = cTID('Nm  ');
    PSKey.New = cTID('Nw  ');
    PSKey.Noise = cTID('Nose');
    PSKey.Offset = cTID('Ofst');
    PSKey.Opacity = cTID('Opct');
    PSKey.Radius = cTID('Rds ');
    PSKey.Start = cTID('Strt');
    PSKey.To = cTID('T   ');
    PSKey.Type = cTID('Type');
    PSKey.Using = cTID('Usng');
    PSKey.Vertical = cTID('Vrtc');
    PSKey.Width = cTID('Wdth');
    PSString.Null = sTID('null');
    PSString.addToSelectionContinuous = sTID('addToSelectionContinuous');
    PSString.layerGroup = sTID('layerSection');
    PSString.presetKind = sTID('presetKind');
    PSString.presetKindDefault = sTID('presetKindDefault');
    PSString.presetKindType = sTID('presetKindType');
    PSString.selection = sTID('selection');
    PSString.selectionModifier = sTID('selectionModifier');
    PSString.selectionModifierType = sTID('selectionModifierType');
    PSType.BlendMode = cTID('BlnM');
    PSType.FillContents = cTID('FlCn');
    PSType.Interpolation = cTID('Intp');
    PSType.Ordinal = cTID('Ordn');
    PSType.QuadCenterState = cTID('QCSt');
    PSType.UserMaskOptions = cTID('UsrM');
    PSUnit.Distance = cTID('#Rlt');
    PSUnit.Percent = cTID('#Prc');
    PSUnit.Pixels = cTID('#Pxl');
};

HighPassSharpcopy.loadSymbols(); // load up our symbols


//=========================================
//                    HighPassSharpcopy.main
//=========================================
//

HighPassSharpcopy.main = function () {
    HighPassSharpcopy();
};

HighPassSharpcopy.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：

PS脚本执行.png

4.作者答疑

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