Function set_image_to_blank

DemoPrograms/Demo_PNG_Thumbnail_Viewer.py:83–89

(key)

def set_image_to_blank(key):
    img = PIL.Image.new('RGB', (100, 100), (255, 255, 255))
    img.thumbnail((1, 1), PIL.Image.LANCZOS)
    bio = io.BytesIO()
    img.save(bio, format='PNG')
    imgbytes = bio.getvalue()
    window[key].update(image_data=imgbytes)


# get list of PNG files in folder