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Tiff转换成JPG格式
- convert(1) convert(1)
-
- NAME convert - convert an image or sequence of images
-
- SYNOPSIS
- convert [ options ... ] input_file output_file
-
- DESCRIPTION
- Convert converts an input file using one image format to an output file
- with a differing image format. In addition, various types of image pro-
- cessing can be performed on the converted image during the conversion
- process. Convert recognizes the image formats listed in ImageMagick(1).
-
- EXAMPLES
- To make a thumbnail of a JPEG image, use:
-
- convert -size 120x120 cockatoo.jpg -resize 120x120
- +profile "*" thumbnail.jpg
-
- In this example, '-size 120x120' gives a hint to the JPEG decoder that
- the image is going to be downscaled to 120x120, allowing it to run
- faster by avoiding returning full-resolution images to ImageMagick for
- the subsequent resizing operation. The output image. It will be
- scaled so its largest dimension is 120 pixels. The that might be
- present in the input and aren't needed in the thumbnail.
-
- To convert a MIFF image of a cockatoo to a SUN raster image, use:
-
- convert cockatoo.miff sun:cockatoo.ras
-
- To convert a multi-page PostScript document to individual FAX pages,
- use:
-
- convert -monochrome document.ps fax:page
-
- To convert a TIFF image to a PostScript A4 page with the image in the
- lower left-hand corner, use:
-
- convert -page A4+0+0 image.tiff document.ps
-
- To convert a raw Gray image with a 128 byte header to a portable
- graymap, use:
-
- convert -depth 8 -size 768x512+128 gray:raw
- image.pgm
-
- In this example, "raw" is the input file. Its format is "gray" and it
- has the dimensions and number of header bytes specified by the -size
- option and the sample depth specified by the -depth option. The output
- file is "image.pgm". The suffix ".pgm" specifies its format.
-
- To convert a Photo CD image to a TIFF image, use:
-
- convert -size 1536x1024 img0009.pcd image.tiff
- convert img0009.pcd[4] image.tiff
-
- To create a visual image directory of all your JPEG images, use:
-
- convert 'vid:*.jpg' directory.miff
-
- To annotate an image with blue text using font 12x24 at position
- (100,100), use:
-
- convert -font helvetica -fill blue
- -draw "text 100,100 Cockatoo"
- bird.jpg bird.miff
-
- To tile a 640x480 image with a JPEG texture with bumps use:
-
- convert -size 640x480 tile:bumps.jpg tiled.png
-
- To surround an icon with an ornamental border to use with Mosaic(1),
- use:
-
- convert -mattecolor "#697B8F" -frame 6x6 bird.jpg
- icon.png
-
- To create a MNG animation from a DNA molecule sequence, use:
-
- convert -delay 20 dna.* dna.mng
-
- OPTIONS
- Options are processed in command line order. Any option you specify on
- the command line remains in effect for the set of images that follows,
- until the set is terminated by the appearance of any option or -noop.
- Some options only affect the decoding of images and others only the
- encoding. The latter can appear after the final group of input images.
-
- For a more detailed description of each option, see ImageMagick(1).
-
- -adjoin
- join images into a single multi-image file
-
- -antialias
- remove pixel aliasing
-
- -append
- append a set of images
-
- -authenticate <string>;
- decrypt image with this password
-
- -average
- average a set of images
-
- -background <color>;
- the background color
-
- -blue-primary <x>;,<y>;
- blue chromaticity primary point
-
- -blur <radius>;{x<sigma>;}
- blur the image with a Gaussian operator
-
- -border <width>;x<height>;
- surround the image with a border of color
-
- -bordercolor <color>;
- the border color
-
- -box <color>;
- set the color of the annotation bounding box
-
- -cache <threshold>;
- (This option has been replaced by the -limit option)
-
- -channel <type>;
- the type of channel
-
- -charcoal <factor>;
- simulate a charcoal drawing
-
- -chop <width>;x<height>;{+-}<x>;{+-}<y>;{%}
- remove pixels from the interior of an image
-
- -clip apply the clipping path, if one is present
-
- -coalesce
- merge a sequence of images
-
- -colorize <value>;
- colorize the image with the pen color
- ze the image with the pen color
-
- -dispose <method>;
- GIF disposal method
-
- -dither
- apply Floyd/Steinberg error diffusion to the image
-
- -draw <string>;
- annotate an image with one or more graphic primitives
-
- -edge <radius>;
- detect edges within an image
-
- -emboss <radius>;
- emboss an image
-
- -encoding <type>;
- specify the text encoding
-
- -endian <type>;
- specify endianness (MSB or LSB) of output image
-
- -enhance
- apply a digital filter to enhance a noisy image
-
- -equalize
- perform histogram equalization to the image
-
- -extract <width>;x<height>;{+-}<x>;{+-}<y>;{%}{@} {!}{<}{>;}
- extract an area from the image while decoding
-
- -fill <color>;
- color to use when filling a graphic primitive
-
- -filter <type>;
- use this type of filter when resizing an image
-
- -flatten
- flatten a sequence of images
-
- -flip create a "mirror image"
-
- -flop create a "mirror image"
-
- -font <name>;
- use this font when annotating the image with text
-
- -frame <width>;x<height>;+<outer bevel width>;+<inner bevel width>;
- surround the image with an ornamental border
-
-
- -fuzz <distance>;{%}
- colors within this distance are considered equal
-
- -gamma <value>;
- level of gamma correction
-
- -Gaussian <radius>;{x<sigma>;}
- blur the image with a Gaussian operator
-
- -geometry <width>;x<height>;{+-}<x>;{+-}<y>;{%}{@} {!}{<}{>;}
- preferred size and location of the Image window.
-
- -gravity <type>;
- direction primitive gravitates to when annotating the image.
-
- -green-primary <x>;,<y>;
- green chromaticity primary point
-
- -help print usage instructions
-
- -implode <factor>;
- implode image pixels about the center
-
- -intent <type>;
- use this type of rendering intent when managing the image color
-
- -interlace <type>;
- the type of interlacing scheme
-
- -label <name>;
- assign a label to an image
-
- -lat <width>;x<height>;{+-}<offset>;{%}
- perform local adaptive thresholding
-
- -level <black_point>;{,<white_point>;}{%}{,<gamma>;}
- adjust the level of image contrast
-
- -limit <type>; <value>;
- Disk, File, Map, or Memory resource limit
-
- -list <type>;
- the type of list
-
- -log <string>;
-
- -loop <iterations>;
- ......
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发表于 2003-12-04 14:03
