Source code for calibration.VxlToPng

import Voxel
import numpy as np 
import sys
import os
import cv2

def vxltoPng(filename):
    """Converts VXL file to a PNG using amplitude data. Uses open cv libraries"""
    camsys = Voxel.CameraSystem()
    r = Voxel.FrameStreamReader(filename, camsys)
    bool1, cols = r.getStreamParamu("frameWidth")
    bool2, rows = r.getStreamParamu("frameHeight")
    if not bool1 or not bool2:
        print ("Cannot read the stream")
    if not r.isStreamGood():
        print("Stream is not good: " + filename)
    numFrames = r.size()
    meanAmplitudes = np.zeros(( rows, cols), dtype='float')
    for i in (range(numFrames)):
        if not r.readNext():
            print("Failed to read frame %d" %i)
            break
        tofFrame = Voxel.ToF1608Frame.typeCast(r.frames[Voxel.DepthCamera.FRAME_RAW_FRAME_PROCESSED])
        meanAmplitudes += np.array(tofFrame._amplitude, copy=True).reshape((rows, cols))
    r.close()
    meanAmplitudes = meanAmplitudes/np.max(meanAmplitudes)*255

    outFileName = os.path.splitext(filename)[0] + '.png' 
    cv2.imwrite(outFileName, meanAmplitudes.astype(np.uint8))
    
if __name__ == "__main__":
    vxltoPng("test.vxl")