YouTip

Pillow provides rich features, including image opening, editing, saving, format conversion, etc. This article will introduce Pillow's common modules and methods, and provide simple code examples. * * * ## Common Modules | Module Name | Function Category | Core Functions | Common Methods/Attributes | Typical Application Scenarios | | --- | --- | --- | --- | --- | | **Image** | Core Module | Basic Image Operations | `open()`, `save()`, `resize()`, `crop()`, `rotate()`, `convert()` | Image Loading/Saving/Resizing/Format Conversion | | **ImageDraw** | Drawing Module | Vector Graphics Drawing | `Draw()`, `line()`, `rectangle()`, `text()`, `ellipse()` | Adding Watermarks/Drawing Graphics/Image Annotation | | **ImageFont** | Font Support | Text Rendering | `truetype()`, `load_default()`, `getsize()` | Custom Text Styles/Text Area Calculation | | **ImageFilter** | Image Effects | Filter Processing | `BLUR`, `SHARPEN`, `EMBOSS`, `GaussianBlur()` | Image Blur/Sharpening/Artistic Effects | | **ImageEnhance** | Image Enhancement | Quality Enhancement | `Brightness()`, `Contrast()`, `Color()`, `Sharpness()` | Brightness/Contrast/Saturation Adjustment | | **ImageOps** | Advanced Operations | Automated Processing | `grayscale()`, `flip()`, `mirror()`, `invert()` | Image Inversion/Mirror/Force Grayscale | | **ImageChops** | Channel Operations | Mathematical Operations | `add()`, `subtract()`, `multiply()`, `difference()` | Image Compositing/Difference Detection/Mask Processing | | **ImageColor** | Color System | Color Conversion | `getrgb()`, `getcolor()`, `colormap` | HEX/RGB/HSL Color Conversion | | **ImageGrab** | Screen Capture | Screenshot Function | `grab()`, `grabclipboard()` | Screen Capture/Clipboard Image Acquisition | | **ImageStat** | Data Analysis | Pixel Statistics | `Stat()`, `extrema()`, `mean()`, `rms()` | Image Color Analysis/Brightness Detection | | **ImagePalette** | Palette | Indexed Color Management | `new()`, `getcolor()`, `tobytes()` | 8-bit Color Image Processing/GIF Optimization | | **ImagePath** | Path Processing | Vector Path | `Path()`, `getbbox()`, `compact()` | Complex Shape Drawing (needs to be used with ImageDraw) | | **ImageSequence** | Dynamic Image | Frame Processing | `Iterator()`, `all_frames()` | GIF Animation Decomposition/Multi-frame TIFF Processing | | **ImageMorph** | Morphology | Image Deformation | `MorphOp()`, `apply()`, `get_on_pixels()` | Pattern Dilation/Erosion/Structure Analysis | | **ImageShow** | Image Preview | Quick Display | `show()`, `register_viewer()` | Quick Image Viewing During Debugging | | **ImageTk** | GUI Integration | Tkinter Support | `PhotoImage()`, `BitmapImage()` | Displaying Images in Tkinter Interface | | **ImageQt** | GUI Integration | Qt Support | `ImageQt()`, `toqimage()` | PyQt/PySide Image Display | | **ExifTags** | Metadata | EXIF Reading | `TAGS`, `GPSTAGS` | Reading Camera Parameters/GPS Information | | **PSDraw** | Print Output | PostScript | `PSDraw()`, `begin_document()` | Generating Print-ready Vector Files | | **TiffTags** | Metadata | TIFF Tags | `TIFFTAGS` | Processing TIFF Format Metadata | ### Module Working Process !(#) **Advanced Processing Combinations:** * Special Effects: ImageFilter + ImageEnhance * Image Analysis: ImageStat + ImageChops * GUI Development: ImageTk/ImageQt + ImageDraw **Professional Domain Support:** * Scientific Imaging: TIFFTags + ImageSequence * Print Publishing: PSDraw + ImageColor * Computer Vision: ImageMorph + ImageOps * * * ## Common Methods ### `PIL.Image` Module Common Methods | Method | Description | Example | | --- | --- | --- | | `Image.open()` | Open Image File | `img = Image.open("example.jpg")` | | `Image.save()` | Save Image File | `img.save("output.png")` | | `Image.show()` | Display Image | `img.show()` | | `Image.resize()` | Resize Image | `new_img = img.resize((200, 200))` | | `Image.rotate()` | Rotate Image | `rotated_img = img.rotate(45)` | | `Image.crop()` | Crop Image | `cropped_img = img.crop((50, 50, 200, 200))` | **Example Code:** ## Instance from PIL import Image # Open Image img = Image.open("example.jpg") # Resize and Save resized_img = img.resize((300,300)) resized_img.save("resized_example.jpg") # Rotate 90 Degrees and Display rotated_img = img.rotate(90) rotated_img.show() * * * ### `PIL.ImageDraw` Module Common Methods | Method | Description | Example | | --- | --- | --- | | `ImageDraw.Draw()` | Create Drawing Object | `draw = ImageDraw.Draw(img)` | | `draw.line()` | Draw Line | `draw.line([(0, 0), (100, 100)], fill="red", width=2)` | | `draw.rectangle()` | Draw Rectangle | `draw.rectangle([(50, 50), (150, 150)], outline="blue", width=3)` | | `draw.text()` | Draw Text | `draw.text((10, 10), "Hello", fill="black")` | **Example Code:** ## Instance from PIL import Image, ImageDraw # Create a Blank Image img = Image.new("RGB",(300,300),"white") draw = ImageDraw