500.js

function cropToSelection(top, left, bottom, right) {

	var idCrop = charIDToTypeID("Crop");

	var desc11 = new ActionDescriptor();

	var idT = charIDToTypeID("T   ");

	var desc12 = new ActionDescriptor();

	var idTop = charIDToTypeID("Top ");

	var idPxl = charIDToTypeID("#Pxl");

	desc12.putUnitDouble(idTop, idPxl, top);

	var idLeft = charIDToTypeID("Left");

	var idPxl = charIDToTypeID("#Pxl");

	desc12.putUnitDouble(idLeft, idPxl, left);

	var idBtom = charIDToTypeID("Btom");

	var idPxl = charIDToTypeID("#Pxl");

	desc12.putUnitDouble(idBtom, idPxl, bottom);

	var idRght = charIDToTypeID("Rght");

	var idPxl = charIDToTypeID("#Pxl");

	desc12.putUnitDouble(idRght, idPxl, right);

	var idRctn = charIDToTypeID("Rctn");

	desc11.putObject(idT, idRctn, desc12);

	var idAngl = charIDToTypeID("Angl");

	var idAng = charIDToTypeID("#Ang");

	desc11.putUnitDouble(idAngl, idAng, 0.000000);

	var idDlt = charIDToTypeID("Dlt ");

	desc11.putBoolean(idDlt, false);

	var idcropAspectRatioModeKey = stringIDToTypeID("cropAspectRatioModeKey");

	var idcropAspectRatioModeClass = stringIDToTypeID("cropAspectRatioModeClass");

	var idtargetSize = stringIDToTypeID("targetSize");

	desc11.putEnumerated(idcropAspectRatioModeKey, idcropAspectRatioModeClass, idtargetSize);

	executeAction(idCrop, desc11, DialogModes.NO);

}


function main() {

	// Settings.
	const TARGET_RATIO = 1;

	// Check if we have open documents.
	if (!app.documents.length) {
		alert('There are no open documents.');
		return false;
	}


	const document = app.activeDocument;

	try{
		var bounds = document.selection.bounds;

		const selectionWidth = bounds[2] - bounds[0];
		const selectionHeight = bounds[3] - bounds[1];
		const maxDimension = Math.max(selectionHeight, selectionWidth);
		const expandValue = Math.round(maxDimension/20);

		document.selection.expand(expandValue);

		bound = document.selection.bounds;

		cropToSelection (bound[1], bound[0], bound[3], bound[2])
	}  catch(e){
		alert('No selection.');
		return false;
	}

	if (true) {
		// Crop without delting pixels.
		// Get the image size in pixels.
		var width = new UnitValue(document.width, document.width.type);
		var height = new UnitValue(document.height, document.height.type);
		width.convert('px');
		height.convert('px');

		const currentRatio = width / height;

		// Start by setting the current dimensions.
		var resizedWidth = width;
		var resizedHeight = height;

		// The source image aspect ratio determines which dimension, if any, needs to be changed.
		if (currentRatio < TARGET_RATIO) {
			resizedWidth = height * TARGET_RATIO;
		} else {
			resizedHeight = width / TARGET_RATIO;
		}

		// Apply the change to the image.
		document.resizeCanvas(resizedWidth, resizedHeight, AnchorPosition.MIDDLECENTER);
	}

};

main();

500_save.js

var doc = app.activeDocument;
var docName = doc.name;
docName = docName.match(/(.*)(\.[^\.]+)/) ? docName = docName.match(/(.*)(\.[^\.]+)/) : docName = [docName, docName];

function save(doc, saveFile, qty) {
	var options = new PNGSaveOptions()
	options.compression = 0
	options.interlaced = false
	doc.saveAs(saveFile, options, true);
}


for (var i = 0; i < 4; i++) {
	var saveName = new File(decodeURI(doc.path) + '/result/' + docName[1] + '_' + i + '.png');
	doc.rotateCanvas(90);
	save(app.activeDocument, saveName, 10);
}

501.js

function selectSubject(){
	var idautoCutout = stringIDToTypeID( "autoCutout" );
	var desc41 = new ActionDescriptor();
	var idsampleAllLayers = stringIDToTypeID( "sampleAllLayers" );
	desc41.putBoolean( idsampleAllLayers, false );
	executeAction( idautoCutout, desc41, DialogModes.NO );
}

function cropToSelection(top, left, bottom, right) {
	var idCrop = charIDToTypeID("Crop");
	var desc11 = new ActionDescriptor();
	var idT = charIDToTypeID("T   ");
	var desc12 = new ActionDescriptor();
	var idTop = charIDToTypeID("Top ");
	var idPxl = charIDToTypeID("#Pxl");
	desc12.putUnitDouble(idTop, idPxl, top);
	var idLeft = charIDToTypeID("Left");
	var idPxl = charIDToTypeID("#Pxl");
	desc12.putUnitDouble(idLeft, idPxl, left);
	var idBtom = charIDToTypeID("Btom");
	var idPxl = charIDToTypeID("#Pxl");
	desc12.putUnitDouble(idBtom, idPxl, bottom);
	var idRght = charIDToTypeID("Rght");
	var idPxl = charIDToTypeID("#Pxl");
	desc12.putUnitDouble(idRght, idPxl, right);
	var idRctn = charIDToTypeID("Rctn");
	desc11.putObject(idT, idRctn, desc12);
	var idAngl = charIDToTypeID("Angl");
	var idAng = charIDToTypeID("#Ang");
	desc11.putUnitDouble(idAngl, idAng, 0.000000);
	var idDlt = charIDToTypeID("Dlt ");
	desc11.putBoolean(idDlt, false);
	var idcropAspectRatioModeKey = stringIDToTypeID("cropAspectRatioModeKey");
	var idcropAspectRatioModeClass = stringIDToTypeID("cropAspectRatioModeClass");
	var idtargetSize = stringIDToTypeID("targetSize");
	desc11.putEnumerated(idcropAspectRatioModeKey, idcropAspectRatioModeClass, idtargetSize);
	executeAction(idCrop, desc11, DialogModes.NO);
}


function main() {

	// Settings.
	const TARGET_RATIO = 1;

	// Check if we have open documents.
	if (!app.documents.length) {
		alert('There are no open documents.');
		return false;
	}

	const document = app.activeDocument;

	selectSubject();

	if (true) {
		try {
			var bounds = document.selection.bounds;

			const selectionWidth = bounds[2] - bounds[0];
			const selectionHeight = bounds[3] - bounds[1];
			const maxDimension = Math.max(selectionHeight, selectionWidth);
			const expandValue = Math.round(maxDimension / 20);

			document.selection.expand(expandValue);

			bound = document.selection.bounds;

			cropToSelection(bound[1], bound[0], bound[3], bound[2])
		} catch (e) {
			alert('No selection.');
			return false;
		}
	}

	if (true) {
		// Crop without delting pixels.
		// Get the image size in pixels.
		var width = new UnitValue(document.width, document.width.type);
		var height = new UnitValue(document.height, document.height.type);
		width.convert('px');
		height.convert('px');

		const currentRatio = width / height;

		// Start by setting the current dimensions.
		var resizedWidth = width;
		var resizedHeight = height;

		// The source image aspect ratio determines which dimension, if any, needs to be changed.
		if (currentRatio < TARGET_RATIO) {
			resizedWidth = height * TARGET_RATIO;
		} else {
			resizedHeight = width / TARGET_RATIO;
		}

		// Apply the change to the image.
		document.resizeCanvas(resizedWidth, resizedHeight, AnchorPosition.MIDDLECENTER);

	}

	const layer = app.activeDocument.artLayers[0];
	layer.autoLevels();
	layer.autoContrast();
	layer.applyAddNoise(7, NoiseDistribution.GAUSSIAN, false);
	document.changeMode(ChangeMode.GRAYSCALE);

	var docName = document.name;
	docName = docName.match(/(.*)(\.[^\.]+)/) ? docName = docName.match(/(.*)(\.[^\.]+)/) : docName = [docName, docName];

	function save(doc, saveFile, qty) {
		var options = new PNGSaveOptions()
		options.compression = 0;
		options.interlaced = false;
		document.saveAs(saveFile, options, true);
	}

	for (var i = 0; i < 4; i++) {
		var saveName = new File(decodeURI(document.path) + '/result/' + docName[1] + '_' + i + '.png');
		document.rotateCanvas(90);
		save(app.activeDocument, saveName, 10);
	}

};

main();