Method doInverseTransform

ij/src/main/java/ij/plugin/FFT.java:207–250

(FHT fht)

	}
	
	void doInverseTransform(FHT fht) {
		fht = fht.getCopy();
		doMasking(fht);
		showStatus("Inverse transform");
		fht.inverseTransform();
		if (fht.quadrantSwapNeeded)
			fht.swapQuadrants();
		fht.resetMinAndMax();
		ImageProcessor ip2 = fht;
		if (fht.originalWidth>0) {
			fht.setRoi(0, 0, fht.originalWidth, fht.originalHeight);
			ip2 = fht.crop();
		}
		int bitDepth = fht.originalBitDepth>0?fht.originalBitDepth:imp.getBitDepth();
		if (!showOutput && bitDepth!=24)
			bitDepth = 32;
		switch (bitDepth) {
			case 8: ip2 = ip2.convertToByte(false); break;
			case 16: ip2 = ip2.convertToShort(false); break;
			case 24:
				showStatus("Setting brightness");
				if (fht.rgb==null || ip2==null) {
					IJ.error("FFT", "Unable to set brightness");
					return;
				}
				ColorProcessor rgb = (ColorProcessor)fht.rgb.duplicate();
				rgb.setBrightness((FloatProcessor)ip2);
				ip2 = rgb; 
				fht.rgb = null;
				break;
			case 32: break;
		}
		if (bitDepth!=24 && fht.originalColorModel!=null)
			ip2.setColorModel(fht.originalColorModel);
		String title = imp.getTitle();
		if (title.startsWith("FFT of "))
			title = title.substring(7, title.length());
		ImagePlus imp2 = new ImagePlus("Inverse FFT of "+title, ip2);
		imp2.setCalibration(imp.getCalibration());
		if (showOutput)
			imp2.show();
		else
			this.imp2 = imp2;
	}

	void doForwardTransform(FHT fht) {
		showStatus("Forward transform");