10 examples of 'python save image as png' in Python

112
def save(self, path, fileformat='png'):
113
    if fileformat == 'png':
114
        self.surface.write_to_png(path)

204
def save(self, filename):
205
    self.image.write(filename)

179
def save_image(ax=None):
180
    image_data = StringIO()
181
    save_html(plt.gcf(), image_data)
182
    image_data.seek(0)
183
    return image_data

11
def png(self, width=700, height=500):
12
    """ Build an Ipython "Image" (requires iPython). """
13
    return image_png(self, width=width, height=height)

14
def to_png(data, size, level=6, output=None):
15
    # type: (bytes, Tuple[int, int], int, Optional[str]) -> Optional[bytes]
16
    """
17
    Dump data to a PNG file.  If `output` is `None`, create no file but return
18
    the whole PNG data.
19
20
    :param bytes data: RGBRGB...RGB data.
21
    :param tuple size: The (width, height) pair.
22
    :param int level: PNG compression level.
23
    :param str output: Output file name.
24
    """
25
26
    width, height = size
27
    line = width * 3
28
    png_filter = struct.pack(">B", 0)
29
    scanlines = b"".join(
30
        [png_filter + data[y * line : y * line + line] for y in range(height)]
31
    )
32
33
    magic = struct.pack(">8B", 137, 80, 78, 71, 13, 10, 26, 10)
34
35
    # Header: size, marker, data, CRC32
36
    ihdr = [b"", b"IHDR", b"", b""]
37
    ihdr[2] = struct.pack(">2I5B", width, height, 8, 2, 0, 0, 0)
38
    ihdr[3] = struct.pack(">I", zlib.crc32(b"".join(ihdr[1:3])) & 0xFFFFFFFF)
39
    ihdr[0] = struct.pack(">I", len(ihdr[2]))
40
41
    # Data: size, marker, data, CRC32
42
    idat = [b"", b"IDAT", zlib.compress(scanlines, level), b""]
43
    idat[3] = struct.pack(">I", zlib.crc32(b"".join(idat[1:3])) & 0xFFFFFFFF)
44
    idat[0] = struct.pack(">I", len(idat[2]))
45
46
    # Footer: size, marker, None, CRC32
47
    iend = [b"", b"IEND", b"", b""]
48
    iend[3] = struct.pack(">I", zlib.crc32(iend[1]) & 0xFFFFFFFF)
49
    iend[0] = struct.pack(">I", len(iend[2]))
50
51
    if not output:
52
        # Returns raw bytes of the whole PNG data
53
        return magic + b"".join(ihdr + idat + iend)
54
55
    with open(output, "wb") as fileh:
56
        fileh.write(magic)
57
        fileh.write(b"".join(ihdr))
58
        fileh.write(b"".join(idat))
59
        fileh.write(b"".join(iend))
60
61
    return None

12
def save_image(filename, data):
13
    img= data[:,:,[2,1,0]]
14
    # img = data.clone().clamp(0, 255).numpy()
15
    # img = img.transpose(1, 2, 0).astype("uint8")
16
    img=img.astype("uint8")
17
    img = Image.fromarray(img)
18
    img.save(filename)

58
def save(self, filename):
59
    self.img.write_to_png(filename)

73
def _repr_png_(self, _crop_box=None):
74
    """Hook for IPython Notebook
75
76
    See: http://ipython.org/ipython-doc/stable/config/integrating.html
77
    """
78
    if _crop_box:
79
        image = self.pil_image.crop(_crop_box)
80
    else:
81
        image = self.pil_image
82
    buf = BytesIO()
83
    image.save(buf, "PNG")
84
    return buf.getvalue()

57
def save(self, filename, output):
58
    filename = '{0}.{1}'.format(filename, self.format.lower())
59
    output.save(filename, self.format.upper())
60
    return filename

510
def print_png(self, filename_or_obj, *args, **kwargs):
511
    FigureCanvasAgg.draw(self)
512
    renderer = self.get_renderer()
513
    original_dpi = renderer.dpi
514
    renderer.dpi = self.figure.dpi
515
    if is_string_like(filename_or_obj):
516
        filename_or_obj = open(filename_or_obj, 'wb')
517
        close = True
518
    else:
519
        close = False
520
    try:
521
        _png.write_png(renderer._renderer.buffer_rgba(),
522
                       renderer.width, renderer.height,
523
                       filename_or_obj, self.figure.dpi)
524
    finally:
525
        if close:
526
            filename_or_obj.close()
527
    renderer.dpi = original_dpi