PIL Package (autodoc of remaining modules)

Reference for modules whose documentation has not yet been ported or written can be found here.

BdfFontFile Module

class PIL.BdfFontFile.BdfFontFile(fp)[源代码]

基类:PIL.FontFile.FontFile

PIL.BdfFontFile.bdf_char(f)[源代码]

ContainerIO Module

class PIL.ContainerIO.ContainerIO(file, offset, length)[源代码]

基类:object

isatty()[源代码]
read(n=0)[源代码]
readline()[源代码]
readlines()[源代码]
seek(offset, mode=0)[源代码]
tell()[源代码]

FontFile Module

class PIL.FontFile.FontFile[源代码]

基类:object

bitmap = None
compile()[源代码]

Create metrics and bitmap

save(filename)[源代码]

Save font

PIL.FontFile.puti16(fp, values)[源代码]

GdImageFile Module

class PIL.GdImageFile.GdImageFile(fp=None, filename=None)[源代码]

基类:PIL.ImageFile.ImageFile

format = 'GD'
format_description = 'GD uncompressed images'
PIL.GdImageFile.open(fp, mode='r')[源代码]

GimpGradientFile Module

class PIL.GimpGradientFile.GimpGradientFile(fp)[源代码]

基类:PIL.GimpGradientFile.GradientFile

class PIL.GimpGradientFile.GradientFile[源代码]

基类:object

getpalette(entries=256)[源代码]
gradient = None
PIL.GimpGradientFile.curved(middle, pos)[源代码]
PIL.GimpGradientFile.linear(middle, pos)[源代码]
PIL.GimpGradientFile.sine(middle, pos)[源代码]
PIL.GimpGradientFile.sphere_decreasing(middle, pos)[源代码]
PIL.GimpGradientFile.sphere_increasing(middle, pos)[源代码]

GimpPaletteFile Module

class PIL.GimpPaletteFile.GimpPaletteFile(fp)[源代码]

基类:object

getpalette()[源代码]
rawmode = 'RGB'

ImageDraw2 Module

class PIL.ImageDraw2.Brush(color, opacity=255)[源代码]

基类:object

class PIL.ImageDraw2.Draw(image, size=None, color=None)[源代码]

基类:object

arc(xy, start, end, *options)[源代码]
chord(xy, start, end, *options)[源代码]
ellipse(xy, *options)[源代码]
flush()[源代码]
line(xy, *options)[源代码]
pieslice(xy, start, end, *options)[源代码]
polygon(xy, *options)[源代码]
rectangle(xy, *options)[源代码]
render(op, xy, pen, brush=None)[源代码]
settransform(offset)[源代码]
symbol(xy, symbol, *options)[源代码]
text(xy, text, font)[源代码]
textsize(text, font)[源代码]
class PIL.ImageDraw2.Font(color, file, size=12)[源代码]

基类:object

class PIL.ImageDraw2.Pen(color, width=1, opacity=255)[源代码]

基类:object

ImageShow Module

class PIL.ImageShow.DisplayViewer[源代码]

基类:PIL.ImageShow.UnixViewer

get_command_ex(file, **options)[源代码]
class PIL.ImageShow.UnixViewer[源代码]

基类:PIL.ImageShow.Viewer

show_file(file, **options)[源代码]
class PIL.ImageShow.Viewer[源代码]

基类:object

format = None
get_command(file, **options)[源代码]
get_format(image)[源代码]
save_image(image)[源代码]
show(image, **options)[源代码]
show_file(file, **options)[源代码]
show_image(image, **options)[源代码]
class PIL.ImageShow.XVViewer[源代码]

基类:PIL.ImageShow.UnixViewer

get_command_ex(file, title=None, **options)[源代码]
PIL.ImageShow.register(viewer, order=1)[源代码]
PIL.ImageShow.show(image, title=None, **options)[源代码]
PIL.ImageShow.which(executable)[源代码]

ImageTransform Module

class PIL.ImageTransform.AffineTransform(data)[源代码]

基类:PIL.ImageTransform.Transform

method = 0
class PIL.ImageTransform.ExtentTransform(data)[源代码]

基类:PIL.ImageTransform.Transform

method = 1
class PIL.ImageTransform.MeshTransform(data)[源代码]

基类:PIL.ImageTransform.Transform

method = 4
class PIL.ImageTransform.QuadTransform(data)[源代码]

基类:PIL.ImageTransform.Transform

method = 3
class PIL.ImageTransform.Transform(data)[源代码]

基类:PIL.Image.ImageTransformHandler

getdata()[源代码]
transform(size, image, **options)[源代码]

JpegPresets Module

JPEG quality settings equivalent to the Photoshop settings.

More presets can be added to the presets dict if needed.

Can be use when saving JPEG file.

To apply the preset, specify:

quality="preset_name"

To apply only the quantization table:

qtables="preset_name"

To apply only the subsampling setting:

subsampling="preset_name"

Example:

im.save("image_name.jpg", quality="web_high")

Subsampling

Subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information. (ref.: https://en.wikipedia.org/wiki/Chroma_subsampling)

Possible subsampling values are 0, 1 and 2 that correspond to 4:4:4, 4:2:2 and 4:1:1 (or 4:2:0?).

You can get the subsampling of a JPEG with the JpegImagePlugin.get_subsampling(im) function.

Quantization tables

They are values use by the DCT (Discrete cosine transform) to remove unnecessary information from the image (the lossy part of the compression). (ref.: https://en.wikipedia.org/wiki/Quantization_matrix#Quantization_matrices, https://en.wikipedia.org/wiki/JPEG#Quantization)

You can get the quantization tables of a JPEG with:

im.quantization

This will return a dict with a number of arrays. You can pass this dict directly as the qtables argument when saving a JPEG.

The tables format between im.quantization and quantization in presets differ in 3 ways:

  1. The base container of the preset is a list with sublists instead of dict. dict[0] -> list[0], dict[1] -> list[1], …
  2. Each table in a preset is a list instead of an array.
  3. The zigzag order is remove in the preset (needed by libjpeg >= 6a).

You can convert the dict format to the preset format with the JpegImagePlugin.convert_dict_qtables(dict_qtables) function.

Libjpeg ref.: http://web.archive.org/web/20120328125543/http://www.jpegcameras.com/libjpeg/libjpeg-3.html

PaletteFile Module

class PIL.PaletteFile.PaletteFile(fp)[源代码]

基类:object

getpalette()[源代码]
rawmode = 'RGB'

PcfFontFile Module

class PIL.PcfFontFile.PcfFontFile(fp)[源代码]

基类:PIL.FontFile.FontFile

name = 'name'
PIL.PcfFontFile.sz(s, o)[源代码]

PngImagePlugin.iTXt Class

class PIL.PngImagePlugin.iTXt[源代码]

基类:str

Subclass of string to allow iTXt chunks to look like strings while keeping their extra information

__new__(cls, text, lang, tkey)[源代码]
参数:
  • value – value for this key
  • lang – language code
  • tkey – UTF-8 version of the key name

PngImagePlugin.PngInfo Class

class PIL.PngImagePlugin.PngInfo[源代码]

基类:object

PNG chunk container (for use with save(pnginfo=))

add(cid, data)[源代码]

Appends an arbitrary chunk. Use with caution.

参数:
  • cid – a byte string, 4 bytes long.
  • data – a byte string of the encoded data
add_itxt(key, value, lang='', tkey='', zip=False)[源代码]

Appends an iTXt chunk.

参数:
  • key – latin-1 encodable text key name
  • value – value for this key
  • lang – language code
  • tkey – UTF-8 version of the key name
  • zip – compression flag
add_text(key, value, zip=0)[源代码]

Appends a text chunk.

参数:
  • key – latin-1 encodable text key name
  • value – value for this key, text or an PIL.PngImagePlugin.iTXt instance
  • zip – compression flag

TarIO Module

class PIL.TarIO.TarIO(tarfile, file)[源代码]

基类:PIL.ContainerIO.ContainerIO

WalImageFile Module

PIL.WalImageFile.open(filename)[源代码]

_binary Module

PIL._binary.i16be(c, o=0)[源代码]
PIL._binary.i16le(c, o=0)[源代码]

Converts a 2-bytes (16 bits) string to an integer.

c: string containing bytes to convert o: offset of bytes to convert in string

PIL._binary.i32be(c, o=0)[源代码]
PIL._binary.i32le(c, o=0)[源代码]

Converts a 4-bytes (32 bits) string to an integer.

c: string containing bytes to convert o: offset of bytes to convert in string

PIL._binary.i8(c)[源代码]
PIL._binary.o16be(i)[源代码]
PIL._binary.o16le(i)[源代码]
PIL._binary.o32be(i)[源代码]
PIL._binary.o32le(i)[源代码]
PIL._binary.o8(i)[源代码]