问Photoshop / InDesign CS5脚本:图像大小转换错误是否占用了太多内存？

EN

function resaveInPS(imagePaths, imagesFolder)
{
    /*
     * NOTE:  no single-line comments are allowed in this function, because it is not read line-by-line by BridgeTalk, but as a single String;
     *        only multi-line comments will work, because they are terminated at each end
     */

    BridgeTalk.bringToFront("photoshop"); /* switch view from InDesign to Photoshop */

    app.displayDialogs = DialogModes.NO; /* Photoshop statement, prevents status alerts from interrupting */

    var imagePath = "";
    var fileName = "";
    var largerImage = "";

    for(var i = 0; i < imagePaths.length; i++)
    {
        imagePath = imagePaths[i].fullName;
        fileName = imagePaths[i].name;
        largerImage = fileName.substr(0, fileName.length - 4); /* getting rid of the file extension:  Photoshop will handle the file extension */

        var photoshopDoc = "";
        photoshopDoc = app.open(new File(imagePath) );

        var currentWidth = photoshopDoc.width; /* in inches */
        var currentHeight = photoshopDoc.height; /* in inches */

        currentWidth.convert("px"); /* now in pixels */
        currentHeight.convert("px"); /* now in pixels */

        var newWidth = 600; /* defining the desired exported image width here */
        var ratio = newWidth / currentWidth;
        var newHeight = ratio * currentHeight; /* maintaining aspect ratio of the resized image's height here */

        alert("The currentHeight is " + currentHeight + ".\n\nThe ratio is " + ratio + ".\n\nThe newHeight is " + newHeight + ".");

        photoshopDoc.resizeImage(newHeight, newWidth); /* (height, width) */
        photoshopDoc.resizeCanvas(newHeight, newWidth); /* (height, width) */

        var saveOptions = new TiffSaveOptions(); /* handling the file extension here */
        photoshopDoc.saveAs(new File(imagesFolder + "/" + largerImage), saveOptions); /* saving the new image in the folder here, with the file extension */
        photoshopDoc.close(SaveOptions.DONOTSAVECHANGES); /* close the Photoshop document without saving */
        app.purge(PurgeTarget.ALLCACHES); /* clears the clipboard, history, and undo cache in Photoshop; Note: does NOT delete the temporary files! */

    } /* end of for loop */

    app.displayDialogs = DialogModes.ALL; /* resume normal dialogs after saving the file and closing the document */
    app.purge(PurgeTarget.ALLCACHES); /* clears the clipboard, history and undo cache in Photoshop; Note:  does NOT delete the temporary files! */

} // end of function ResaveInPS