imagemagick 安装后不支持 jpeg,这是个什么情况
发布于 13 年前 作者 guilin 6370 次浏览 最后一次编辑是 8 年前

identify -list format

Format Mode Description

  3FR  r--   Hasselblad CFV/H3D39II
    A* rw+   Raw alpha samples
  AAI* rw+   AAI Dune image
   AI  rw-   Adobe Illustrator CS2
  ART* rw-   PFS: 1st Publisher Clip Art
  ARW  r--   Sony Alpha Raw Image Format
  AVI  r--   Microsoft Audio/Visual Interleaved
  AVS* rw+   AVS X image
    B* rw+   Raw blue samples
  BMP* rw-   Microsoft Windows bitmap image
 BMP2* -w-   Microsoft Windows bitmap image (V2)
 BMP3* -w-   Microsoft Windows bitmap image (V3)
    C* rw+   Raw cyan samples
  CAL* r--   Continuous Acquisition and Life-cycle Support Type 1
       Specified in MIL-R-28002 and MIL-PRF-28002
 CALS* r--   Continuous Acquisition and Life-cycle Support Type 1
       Specified in MIL-R-28002 and MIL-PRF-28002    CANVAS* r--   Constant image uniform color   CAPTION* r--   Caption
  CIN* rw-   Cineon Image File
  CIP* -w-   Cisco IP phone image format
 CLIP* -w+   Image Clip Mask
 CMYK* rw+   Raw cyan, magenta, yellow, and black samples
CMYKA* rw+   Raw cyan, magenta, yellow, black, and alpha samples
  CR2  r--   Canon Digital Camera Raw Image Format
  CRW  r--   Canon Digital Camera Raw Image Format
  CUR* rw-   Microsoft icon
  CUT* r--   DR Halo
  DCM* r--   Digital Imaging and Communications in Medicine image
       DICOM is used by the medical community for images like X-rays.  The
       specification, "Digital Imaging and Communications in Medicine
       (DICOM)", is available at http://medical.nema.org/.  In particular,
       see part 5 which describes the image encoding (RLE, JPEG, JPEG-LS),
       and supplement 61 which adds JPEG-2000 encoding.
  DCR  r--   Kodak Digital Camera Raw Image File
  DCX* rw+   ZSoft IBM PC multi-page Paintbrush
  DDS* r--   Microsoft DirectDraw Surface
DFONT* ---   Multi-face font package
  DNG  r--   Digital Negative
  DPX* rw-   SMPTE 268M-2003 (DPX 2.0)
       Digital Moving Picture Exchange Bitmap, Version 2.0.
       See SMPTE 268M-2003 specification at http://www.smtpe.org
       
 EPDF  rw-   Encapsulated Portable Document Format
  EPI  rw-   Encapsulated PostScript Interchange format
  EPS  rw-   Encapsulated PostScript
 EPS2* -w-   Level II Encapsulated PostScript
 EPS3* -w+   Level III Encapsulated PostScript
 EPSF  rw-   Encapsulated PostScript
 EPSI  rw-   Encapsulated PostScript Interchange format
  ERF  r--   Epson RAW Format
  FAX* rw+   Group 3 FAX
       FAX machines use non-square pixels which are 1.5 times wider than
       they are tall but computer displays use square pixels, therefore
       FAX images may appear to be narrow unless they are explicitly
       resized using a geometry of "150x100%".
       
 FITS* rw-   Flexible Image Transport System   FRACTAL* r--   Plasma fractal image
  FTS* rw-   Flexible Image Transport System
    G* rw+   Raw green samples
   G3* rw-   Group 3 FAX
  GIF* rw+   CompuServe graphics interchange format
GIF87* rw-   CompuServe graphics interchange format (version 87a)  GRADIENT* r--   Gradual linear passing from one shade to another
 GRAY* rw+   Raw gray samples
 HALD* r--   Identity Hald color lookup table image
  HDR* rw+   Radiance RGBE image format HISTOGRAM* -w-   Histogram of the image
  HRZ* rw-   Slow Scan TeleVision
  HTM* -w-   Hypertext Markup Language and a client-side image map
 HTML* -w-   Hypertext Markup Language and a client-side image map
  ICB* rw-   Truevision Targa image
  ICO* rw+   Microsoft icon
 ICON* rw-   Microsoft icon
 INFO  -w+   The image format and characteristics    INLINE* r--   Base64-encoded inline images
  IPL* rw+   IPL Image Sequence
    K* rw+   Raw black samples
  K25  r--   Kodak Digital Camera Raw Image Format
  KDC  r--   Kodak Digital Camera Raw Image Format
LABEL* r--   Image label
    M* rw+   Raw magenta samples
  M2V  rw+   MPEG Video Stream
  M4V  rw+   Raw MPEG-4 Video
  MAC* r--   MAC Paint
  MAP* rw-   Colormap intensities and indices
  MAT  rw+   MATLAB level 5 image format
MATTE* -w+   MATTE format
  MEF  r--   Mamiya Raw Image File
 MIFF* rw+   Magick Image File Format
 MONO* rw-   Raw bi-level bitmap
  MOV  rw+   MPEG Video Stream
  MP4  rw+   MPEG-4 Video Stream
  MPC* rw+   Magick Persistent Cache image format
 MPEG  rw+   MPEG Video Stream
  MPG  rw+   MPEG Video Stream
  MRW  r--   Sony (Minolta) Raw Image File
  MSL* ---   Magick Scripting Language
 MSVG  -w+   ImageMagick's own SVG internal renderer
  MTV* rw+   MTV Raytracing image format
  MVG* rw-   Magick Vector Graphics
  NEF  r--   Nikon Digital SLR Camera Raw Image File
  NRW  r--   Nikon Digital SLR Camera Raw Image File
 NULL* rw-   Constant image of uniform color
    O* rw+   Raw opacity samples
  ORF  r--   Olympus Digital Camera Raw Image File
  OTB* rw-   On-the-air bitmap
  OTF* ---   Open Type font
  PAL* rw-   16bit/pixel interleaved YUV
 PALM* rw+   Palm pixmap
  PAM* rw+   Common 2-dimensional bitmap format
PANGO* ---   Pango Markup Language   PATTERN* r--   Predefined pattern
  PBM* rw+   Portable bitmap format (black and white)
  PCD* rw-   Photo CD
 PCDS* rw-   Photo CD
  PCL  rw+   Printer Control Language
  PCT* rw-   Apple Macintosh QuickDraw/PICT
  PCX* rw-   ZSoft IBM PC Paintbrush
  PDB* rw+   Palm Database ImageViewer Format
  PDF  rw+   Portable Document Format
 PDFA  rw+   Portable Document Archive Format
  PEF  r--   Pentax Electronic File
  PES* r--   Embrid Embroidery Format
  PFA* ---   Postscript Type 1 font (ASCII)
  PFB* ---   Postscript Type 1 font (binary)
  PFM* rw+   Portable float format
  PGM* rw+   Portable graymap format (gray scale)
PICON* rw-   Personal Icon
 PICT* rw-   Apple Macintosh QuickDraw/PICT
  PIX* r--   Alias/Wavefront RLE image format    PLASMA* r--   Plasma fractal image
  PNM* rw+   Portable anymap
  PPM* rw+   Portable pixmap format (color)   PREVIEW* -w-   Show a preview an image enhancement, effect, or f/x
   PS  rw+   PostScript
  PS2* -w+   Level II PostScript
  PS3* -w+   Level III PostScript
  PSB* rw+   Adobe Large Document Format
  PSD* rw+   Adobe Photoshop bitmap
  PWP* r--   Seattle Film Works
    R* rw+   Raw red samples RADIAL-GRADIENT* r--   Gradual radial passing from one shade to another
  RAF  r--   Fuji CCD-RAW Graphic File
  RAS* rw+   SUN Rasterfile
  RGB* rw+   Raw red, green, and blue samples
 RGBA* rw+   Raw red, green, blue, and alpha samples
 RGBO* rw+   Raw red, green, blue, and opacity samples
  RLA* r--   Alias/Wavefront image
  RLE* r--   Utah Run length encoded image
  SCR* r--   ZX-Spectrum SCREEN$
  SCT* r--   Scitex HandShake
  SFW* r--   Seattle Film Works
  SGI* rw+   Irix RGB image
SHTML* -w-   Hypertext Markup Language and a client-side image map
  SR2  r--   Sony Raw Format 2
  SRF  r--   Sony Raw Format   STEGANO* r--   Steganographic image
  SUN* rw+   SUN Rasterfile
  SVG  -w+   Scalable Vector Graphics
 SVGZ  -w+   Compressed Scalable Vector Graphics
 TEXT* rw+   Text
  TGA* rw-   Truevision Targa image THUMBNAIL* -w+   EXIF Profile Thumbnail
 TILE* r--   Tile image with a texture
  TIM* r--   PSX TIM
  TTC* ---   TrueType font collection
  TTF* ---   TrueType font
  TXT* rw+   Text
  UIL* -w-   X-Motif UIL table
 UYVY* rw-   16bit/pixel interleaved YUV
  VDA* rw-   Truevision Targa image
VICAR* rw-   VICAR rasterfile format
  VID* rw+   Visual Image Directory
 VIFF* rw+   Khoros Visualization image
  VST* rw-   Truevision Targa image
 WBMP* rw-   Wireless Bitmap (level 0) image
  WMV  rw+   Windows Media Video
  WPG* r--   Word Perfect Graphics
  X3F  r--   Sigma Camera RAW Picture File
  XBM* rw-   X Windows system bitmap (black and white)
   XC* r--   Constant image uniform color
  XCF* r--   GIMP image
  XPM* rw-   X Windows system pixmap (color)
  XPS  r--   Microsoft XML Paper Specification
   XV* rw+   Khoros Visualization image
    Y* rw+   Raw yellow samples
YCbCr* rw+   Raw Y, Cb, and Cr samples    YCbCrA* rw+   Raw Y, Cb, Cr, and alpha samples
  YUV* rw-   CCIR 601 4:1:1 or 4:2:2
  • native blob support r read support w write support
  • support for multiple images
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