怎么把*.jpg变成*.eps??

可以不下载什么东西直接变吗？

问一下，eps是什么？
你只是要把文件改名吗？

convert foo.jpg foo.eps

谢谢啊，，搞定了

西西

是改名字？还是转换格式？？
rename or convert ?

是转换格式，因为要贴到latex文档里。

[quote:080e68f46f="isun"]convert foo.jpg foo.eps[/quote]
学到了！

[root@gateway_a squid]# convert --help
Version: @(#)ImageMagick 5.4.7 07/01/02 Q:16 http://www.imagemagick.org
Copyright: Copyright (C) 2002 ImageMagick Studio LLC

Usage: convert [options ...] file [ [options ...] file ...] [options ...] file

Where options include:
  -adjoin              join images into a single multi-image file
  -affine matrix       affine transform matrix
  -antialias           remove pixel-aliasing
  -append              append an image sequence
  -average             average an image sequence
  -background color    background color
  -blur geometry       blur the image
  -border geometry     surround image with a border of color
  -bordercolor color   border color
  -cache threshold     megabytes of memory available to the pixel cache
  -channel type        extract a particular color channel from image
  -charcoal radius     simulate a charcoal drawing
  -chop geometry       remove pixels from the image interior
  -clip                apply clipping path if the image has one
  -coalesce            merge a sequence of images
  -colorize value      colorize the image with the fill color
  -colors value        preferred number of colors in the image
  -colorspace type     alternate image colorspace
  -comment string      annotate image with comment
  -compress type       image compression tyhpe
  -contrast            enhance or reduce the image contrast
  -crop geometry       preferred size and location of the cropped image
  -cycle amount        cycle the image colormap
  -debug               display copious debugging information
  -deconstruct         break down an image sequence into constituent parts
  -delay value         display the next image after pausing
  -density geometry    horizontal and vertical density of the image
  -depth value         image depth
  -despeckle           reduce the speckles within an image
  -display server      get image or font from this X server
  -dispose method      GIF disposal method
  -dither              apply Floyd/Steinberg error diffusion to image
  -draw string         annotate the image with a graphic primitive
  -edge radius         apply a filter to detect edges in the image
  -emboss radius       emboss an image
  -encoding type       font encoding type
  -endian type         LSB or MSB
  -enhance             apply a digital filter to enhance a noisy image
  -equalize            perform histogram equalization to an image
  -fill color          color to use when filling a graphic primitive
  -filter type         use this filter when resizing an image
  -flatten             flatten a sequence of images
  -flip                flip image in the vertical direction
  -flop                flop image in the horizontal direction
  -font name           render text with this font
  -frame geometry      surround image with an ornamental border
  -fuzz distance       colors within this distance are considered equal
  -gamma value         level of gamma correction
  -gaussian geometry   gaussian blur an image
  -geometry geometry   perferred size or location of the image
  -gravity type        horizontal and vertical text placement
  -help                print program options
  -implode amount      implode image pixels about the center
  -intent type         Absolute, Perceptual, Relative, or Saturation
  -interlace type      None, Line, Plane, or Partition
  -label name          assign a label to an image
  -level value         adjust the level of image contrast
  -list type           Color, Delegate, Format, Magic, Module, or Type
  -loop iterations     add Netscape loop extension to your GIF animation
  -map filename        transform image colors to match this set of colors
  -mask filename       set the image clip mask
  -matte               store matte channel if the image has one
  -median radius       apply a median filter to the image
  -modulate value      vary the brightness, saturation, and hue
  -monochrome          transform image to black and white
  -morph value         morph an image sequence
  -mosaic              create a mosaic from an image sequence
  -negate              replace every pixel with its complementary color
  -noop                do not apply options to image
  -noise radius        add or reduce noise in an image
  -normalize           transform image to span the full range of colors
  -opaque color        change this color to the fill color
  -page geometry       size and location of an image canvas
  -paint radius        simulate an oil painting
  -ping                efficiently determine image attributes
  -pointsize value     font point size
  -preview type        image preview type
  -profile filename    add ICM or IPTC information profile to image
  -quality value       JPEG/MIFF/PNG compression level
  -raise value         lighten/darken image edges to create a 3-D effect
  -region geometry     apply options to a portion of the image
  -resize geometry     resize the image
  -roll geometry       roll an image vertically or horizontally
  -rotate degrees      apply Paeth rotation to the image
  -sample geometry     scale image with pixel sampling
  -sampling_factor geometry
                       horizontal and vertical sampling factor
  -scale geometry      scale the image
  -scene value         image scene number
  -seed value          pseudo-random number generator seed value
  -segment values      segment an image
  -shade degrees       shade the image using a distant light source
  -sharpen geometry    sharpen the image
  -shave geometry      shave pixels from the image edges
  -shear geometry      slide one edge of the image along the X or Y axis
  -size geometry       width and height of image
  -solarize threshold  negate all pixels above the threshold level
  -spread amount       displace image pixels by a random amount
  -stroke color        graphic primitive stroke color
  -strokewidth value   graphic primitive stroke width
  -swirl degrees       swirl image pixels about the center
  -texture filename    name of texture to tile onto the image background
  -threshold value     threshold the image
  -tile filename       tile image when filling a graphic primitive
  -transform           affine transform image
  -transparent color   make this color transparent within the image
  -treedepth value     color tree depth
  -trim                trim image edges
  -type type           image type
  -undercolor color    annotation bounding box color
  -units type          PixelsPerInch, PixelsPerCentimeter, or Undefined
  -unsharp geometry    sharpen the image
  -verbose             print detailed information about the image
  -view                FlashPix viewing transforms
  -wave geometry       alter an image along a sine wave
  -write filename      write images to this file

By default, the image format of `file' is determined by its magic
number.  To specify a particular image format, precede the filename
with an image format name and a colon (i.e. ps:image) or specify the
image type as the filename suffix (i.e. image.ps).  Specify 'file' as
'-' for standard input or output.