# coding:utf-8
import os
import traceback 
import pydicom
import numpy as np
import re
from PIL import Image
import time
import sys
import codecs
try:
    __import__('gdcm')
except:
    pass  
    
UTF8Reader = codecs.getreader('utf8')

def str_numbers(s):  
    pieces =int(re.compile(r'(\d+)').split(s)[1])    
    return pieces  
  
def sort_strings_with_numbers(alist):  
    return sorted(alist, key=str_numbers)

def convertTo16BitData(ds,path):
    data = ds.pixel_array

    HUArray = np.array(data, dtype=data.dtype)

    if data.dtype == 'uint8' and len(data.shape) ==3:
        img= Image.fromarray(HUArray)
        newWidth =  img.size[0]
        newHeight = img.size[1]
        img.save(path,"PNG")
        result = str(data.dtype)+","+str(newWidth)+","+str(newHeight)

    else:
        # tempSlope=1
        # tempIntercept=0
        # if 'RescaleSlope' in ds:
        #     tempSlope = ds.RescaleSlope
        # if 'RescaleIntercept' in ds:
        #     tempIntercept = ds.RescaleIntercept
        # HUArray = np.array(data*tempSlope + tempIntercept, dtype=data.dtype)
       
        rArray = ((HUArray&0xFF00)>>8).astype('uint8')
        gArray = (HUArray& 0x00FF).astype('uint8')
        bArray = (HUArray*0).astype('uint8')
        r_pixels = Image.fromarray(rArray).convert('L')
        g_pixels = Image.fromarray(gArray).convert('L')
        b_pixels = Image.fromarray(bArray).convert('L')
        img = Image.merge("RGB", (r_pixels, g_pixels, b_pixels))
        newWidth =  img.size[0]
        newHeight = img.size[1]
        
        # if 'Modality' in ds and (ds.Modality=='CR' or ds.Modality == 'DX'):                                       # 1, 2 
        if 0:
            if newWidth>1000 or newHeight>1000:
                newWidth=img.size[0]
                newHeight=img.size[1]
                if newWidth>1000 and newWidth<2000:
                    newWidth=newWidth/2
                if newWidth>2000:
                    newWidth=newWidth/4
                if newHeight>1000 and newHeight<2000:
                    newHeight=newHeight/2
                if newHeight>2000:
                    newHeight=newHeight/4
                img=img.resize((newWidth,newHeight),Image.ANTIALIAS)
        
        img.save(path,"PNG")
        result = str(data.dtype)+","+str(newWidth)+","+str(newHeight)
    return result

while True:
    argsInput = UTF8Reader(sys.stdin.readline()).strip('\n')
    try:
        image_id = argsInput.split(" ")[0]
        dcmFile = argsInput.split(" ")[1]
        pngPath = argsInput.split(" ")[2]
        instance = argsInput.split(" ")[3]
        if not os.path.isdir(pngPath):
            os.mkdir(pngPath)
        pngFile = pngPath+ instance + ".png"
        dataset = pydicom.read_file(dcmFile)
        result =convertTo16BitData(dataset,pngFile)
        print "success"
        print image_id
        print pngFile
        print result
        sys.stdout.flush()
    except Exception:
        sys.stderr.write("error")
        sys.stderr.flush()
        pass