Paul this worked for me as a batch process on the mac. Inverse filter again inverse back should clean out what would have been stray white pixels.
#target photoshop
app.bringToFront();
while (app.documents.length) {
app.activeDocument.close(SaveOptions.PROMPTTOSAVECHANGES);
}
var defaultFolder = new Folder ('~/Desktop');
var inputFolder = defaultFolder.selectDlg('Please select your Folder of Bitmap files…');
var outputFolder = defaultFolder.selectDlg('Please Make/Select a Folder to save Cleaned up files to…');
if (inputFolder != null && outputFolder != null) {
var fileList = inputFolder.getFiles(fileFiltering);
if (fileList.length > 0) {
main(fileList);
} else {
alert('This Folder contained NO Photoshop Tiff files!');
}
} else {
alert('A Required folder was NOT chosen!!!');
}
// Main Photoshop file processing
function main(fileObjs) {
with (app) {
displayDialogs = DialogModes.NO;
for (var i = 0; i < fileObjs.length; i++) {
if (fileList instanceof File) {
open(fileObjs);
var docRef = activeDocument;
with (docRef) {
var baseName = app.activeDocument.name.slice(0,-4);
if (mode != DocumentMode.GRAYSCALE) changeMode(ChangeMode.GRAYSCALE);
docRes = resolution;
$.write(docRes + '\n');
// Cleans single pixels
artLayers[0].applyMaximum(1); // Adjust as required
artLayers[0].applyMinimum(1); // Ditto
artLayers[0].invert();
artLayers[0].applyMaximum(1); // Ditto
artLayers[0].applyMinimum(1); // Ditto
artLayers[0].invert();
var thisBitmap = bitmapOptions(docRes)
changeMode(ChangeMode.BITMAP, thisBitmap);
var newFilePath = new File(outputFolder + '/' + baseName + '.tif');
SaveFileasTIFF(newFilePath, false, TIFFEncoding.TIFFLZW, false, false, false);
close(SaveOptions.DONOTSAVECHANGES);
}
}
}
}
}
function bitmapOptions(res) {
bitOptions = new BitmapConversionOptions();
//bitOptions.angle = 0;
//bitOptions.frequency = 150;
bitOptions.method = BitmapConversionType.HALFTHRESHOLD;
//bitOptions.pattenName = '';
bitOptions.resolution = res;
bitOptions.shape = BitmapHalfToneType.SQUARE;
return bitOptions;
}
function SaveFileasTIFF(saveFile, aC, iC, la, sC, tr) {
tiffSaveOptions = new TiffSaveOptions();
tiffSaveOptions.alphaChannels = aC;
tiffSaveOptions.byteOrder = ByteOrder.MACOS;
tiffSaveOptions.embedColorProfile = true;
tiffSaveOptions.imageCompression = iC;
tiffSaveOptions.layers = la;
tiffSaveOptions.spotColors = sC;
tiffSaveOptions.transparency = tr;
activeDocument.saveAs(saveFile, tiffSaveOptions, true, Extension.LOWERCASE);
}
// Mac ONLY filtering (Photoshop Tiff's)
function fileFiltering(fileObj) {
if (fileObj.creator == '8BIM' && fileObj.type == 'TIFF') {
return true;
} else {
return false;
}
}
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