Average selection HSB + setting HSB
Bit of a an unusual one for you here; but here it is anyway... Is it possible to get the average TSL value of a randomly selected area without applying the average filter, using script? The selection is already created before the script is executed, so all the script needs to do is to get the average value of the selected area HSB. In addition, it is possible to set then selected values STL of the region to a predetermined? I want to keep the detail, but say, darken an area if it is brighter than the preset or Desaturate it if the color is too strong. Any ideas on how to make these / if it is possible to do these? I'm sure the other is feasible but not so sure about the first one, so any help is appreciated.
dgolberg
I tend to use paths so that they cannot be ideally mounted on stuff, but in this case, I suppose to create a work path is a valid option to determine a point of the area of a layer.
This Script will likely include a control to check the preferences are defined on morw than 6 States in history, but most of the users who probably have anyway.
You can try this?
// get hue, saturation and brightness from an averaged layer; // 2011; use it at your own risk; #target photoshop if (app.documents.length > 0) { if (app.activeDocument.activeLayer.kind == LayerKind.NORMAL) { var myDocument = app.activeDocument; // set to pixels; var originalRulerUnits = app.preferences.rulerUnits; app.preferences.rulerUnits = Units.PIXELS; var historyState = myDocument.activeHistoryState; try { // apply average filter; myDocument.activeLayer.applyAverage(); hideOthers (); // load layer transparency; // ======================================================= var idsetd = charIDToTypeID( "setd" ); var desc4 = new ActionDescriptor(); var idnull = charIDToTypeID( "null" ); var ref2 = new ActionReference(); var idChnl = charIDToTypeID( "Chnl" ); var idfsel = charIDToTypeID( "fsel" ); ref2.putProperty( idChnl, idfsel ); desc4.putReference( idnull, ref2 ); var idT = charIDToTypeID( "T " ); var ref3 = new ActionReference(); var idChnl = charIDToTypeID( "Chnl" ); var idChnl = charIDToTypeID( "Chnl" ); var idTrsp = charIDToTypeID( "Trsp" ); ref3.putEnumerated( idChnl, idChnl, idTrsp ); desc4.putReference( idT, ref3 ); executeAction( idsetd, desc4, DialogModes.NO ); // contract selection and make path; myDocument.selection.contract(50); myDocument.selection.makeWorkPath(1); // get one point; var thePoint = myDocument.pathItems[myDocument.pathItems.length - 1].subPathItems[0].pathPoints[0].anchor; // set colorsampler; var myColorSampler = myDocument.colorSamplers.add(thePoint); // return and set foreground-color; var theH = myColorSampler.color.hsb.hue; var theS = myColorSampler.color.hsb.saturation; var theB = myColorSampler.color.hsb.brightness; // undo path and colorsampler; myDocument.activeHistoryState = historyState;// myDocument.historyStates[myDocument.historyStates.length - 2]; alert ("hue "+theH+"\nsaturation "+theS+"\nbrightness "+theB) } catch (e) {alert ("failed")}; // reset; app.rulerUnits = originalRulerUnits; } }; ////// toggle visibility of others ////// function hideOthers () { // ======================================================= var idShw = charIDToTypeID( "Shw " ); var desc10 = new ActionDescriptor(); var idnull = charIDToTypeID( "null" ); var list4 = new ActionList(); var ref7 = new ActionReference(); var idLyr = charIDToTypeID( "Lyr " ); var idOrdn = charIDToTypeID( "Ordn" ); var idTrgt = charIDToTypeID( "Trgt" ); ref7.putEnumerated( idLyr, idOrdn, idTrgt ); list4.putReference( ref7 ); desc10.putList( idnull, list4 ); var idTglO = charIDToTypeID( "TglO" ); desc10.putBoolean( idTglO, true ); executeAction( idShw, desc10, DialogModes.NO ); };
Tags: Photoshop
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