ConvertRASX¶

Extracts image from Rigaku .rasx format and converts it to .tiff and .jpg

ImportDefsPath

import numpy as np
import matplotlib.pyplot as plt
from zipfile import ZipFile
from PIL import Image
from pathlib import Path
from glob import glob
import io as io

def open_rasx(fname):
"""
    Opens rigaku .rasx image files. File structure is as following:
        .rasx -> zip
            -root.xml
            -DataN
                -ImageX.bin
                -MesurementConditions0.xml

    """
    with ZipFile(fname) as myzip:
        with myzip.open('Data0/Image0.bin') as myfile:
            im = np.frombuffer(myfile.read(),  dtype='uint32', ).reshape(385, 775)
        with myzip.open('Data0/MesurementConditions0.xml') as myfile:
            header = myfile.read().decode()
    return im, header
def save_tif(fname, im):
    im = Image.fromarray(im)
    im.save(fname)

folder = Path('/Users/zihanzhang/Library/CloudStorage/OneDrive-UCB-O365')

Convert all Rasx files in the folder:

Code

for f in glob(str(folder)+'/*.rasx'):
    print(f)
    f = Path(f)
    im, header = open_rasx(f)
    #inverse 1st axis
    im = im[::-1,:]
    im=np.log(im)
    plt.imshow(im)
    plt.savefig(f.with_suffix('.jpg'), dpi=360)
    plt.show()
    save_tif(f.with_suffix('.tiff'), im)