convert

機能

画像ファイルのフォーマット変換・画像処理

起動方法

    convert オプション 入力ファイル 出力ファイル

機能

各種フォーマットの画像ファイルを他のフォーマットに変換したり、 様々な画像処理を行なう。

画像フォーマットの種類

読み書きできる画像フォーマットは以下の通り。

8BIM*

Photoshop resource format (rw-)

AVS*

AVS X image (rw+)

BMP*

Microsoft Windows bitmap image (rw+)

BMP24*

Microsoft Windows 24-bit bitmap image (rw+)

CMYK*

Raw cyan, magenta, yellow, and black bytes (rw-)

DCM*

Digital Imaging and Communications in Medicine image (r--)

DCX*

ZSoft IBM PC multi-page Paintbrush (rw+)

DIB*

Microsoft Windows bitmap image (rw+)

EPDF*

Encapsulated Portable Document Format (rw-)

EPI*

Adobe Encapsulated PostScript Interchange format (r--)

EPS*

Adobe Encapsulated PostScript (rw-)

EPS2*

Adobe Level II Encapsulated PostScript (rw-)

EPSF*

Adobe Encapsulated PostScript (rw-)

EPSI*

Adobe Encapsulated PostScript Interchange format (rw-)

EPT*

Adobe Encapsulated PostScript with TIFF preview (rw-)

FAX*

Group 3 FAX (rw+)

FITS*

Flexible Image Transport System (rw-)

G3*

Group 3 FAX (r--)

GIF*

CompuServe graphics interchange format (rw+)

GIF87*

CompuServe graphics interchange format (version 87a) (rw-)

GRADATION*

Gradual passing from one shade to another (r--)

GRANITE*

Granite texture (rw-)

GRAY*

Raw gray bytes (rw+)

H*

Internal format (rw-)

HISTOGRAM*

Histogram of the image (rw-)

HTM*

Hypertext Markup Language and a client-side image map (-w-)

HTML*

Hypertext Markup Language and a client-side image map (-w-)

ICB*

Truevision Targa image (rw+)

ICC*

ICC Color Profile (rw-)

ICO*

Microsoft icon (r--)

IMPLICIT*

Internal format (---)

IPTC*

IPTC Newsphoto (rw-)

JPG*

Joint Photographic Experts Group JFIF format (rw-)

JPEG24*

Joint Photographic Experts Group JFIF format (rw-)

JPEG*

Joint Photographic Experts Group JFIF format (rw-)

LABEL*

Text image format (r--)

LOGO*

ImageMagick Logo (rw-)

MAP*

Colormap intensities and indices (rw-)

MATTE*

Matte format (rw+)

MIFF*

Magick image format (rw+)

MNG*

Multiple-image Network Graphics (rw+)

MONO*

Bi-level bitmap in least-significant-byte first order (rw-)

MTV*

MTV Raytracing image format (rw+)

NETSCAPE*

Netscape 216 color cube (rw-)

NULL*

NULL image (r--)

P7*

Xv thumbnail format (rw+)

PBM*

Portable bitmap format (black and white) (rw+)

PCD*

Photo CD (rw-)

PCDS*

Photo CD (rw-)

PCL*

Page Control Language (rw-)

PCT*

Apple Macintosh QuickDraw/PICT (-w-)

PCX*

ZSoft IBM PC Paintbrush (rw-)

PDF*

Portable Document Format (rw+)

PIC*

Apple Macintosh QuickDraw/PICT (rw-)

PGM*

Portable graymap format (gray scale) (rw+)

PICT*

Apple Macintosh QuickDraw/PICT (rw-)

PICT24*

24-bit Apple Macintosh QuickDraw/PICT (rw-)

PIX*

Alias/Wavefront RLE image format (r--)

PLASMA*

Plasma fractal image (r--)

PM*

X Windows system pixmap (color) (rw-)

PNG*

Portable Network Graphics (rw-)

PNM*

Portable anymap (rw+)

PPM*

Portable pixmap format (color) (rw+)

PREVIEW*

Show a preview an image enhancement, effect, or f/x (-w-)

PS*

Adobe PostScript (rw+)

PS2*

Adobe Level II PostScript (-w+)

PS3*

Adobe Level III PostScript (-w+)

PSD*

Adobe Photoshop bitmap (rw-)

PTIF

Pyramid encoded TIFF (rw+)

PWP*

Seattle Film Works (r--)

RAS*

SUN Rasterfile (rw+)

RGB*

Raw red, green, and blue bytes (rw+)

RGBA*

Raw red, green, blue, and matte bytes (rw+)

RLA*

Alias/Wavefront image (r--)

RLE*

Utah Run length encoded image (r--)

SCT*

Scitex HandShake (r--)

SFW*

Seattle Film Works (r--)

SGI*

Irix RGB image (rw+)

SHTML*

Hypertext Markup Language and a client-side image map (-w-)

STEGANO*

Steganographic image (r--)

SUN*

SUN Rasterfile (rw+)

TEXT*

Raw text (rw+)

TGA*

Truevision Targa image (rw+)

TIF

Tagged Image File Format (rw+)

TIFF

Tagged Image File Format (rw+)

TIFF24

24-bit Tagged Image File Format (rw+)

TILE*

Tile image with a texture (r--)

TIM*

PSX TIM (r--)

TTF*

TrueType font (r--)

TXT*

Raw text (rw+)

UIL*

X-Motif UIL table (rw-)

UYVY*

16bit/pixel interleaved YUV (rw-)

VDA*

Truevision Targa image (rw+)

VICAR*

VICAR rasterfile format (rw-)

VID*

Visual Image Directory (rw+)

VIFF*

Khoros Visualization image (rw+)

VST*

Truevision Targa image (rw+)

WBMP*

Wireless Bitmap (level 0) image (rw-)

X*

X Image (rw-)

XBM*

X Windows system bitmap (black and white) (rw-)

XC*

Constant image of X server color (r--)

XPM*

X Windows system pixmap (color) (rw-)

XV*

Khoros Visualization image (rw+)

XWD*

X Windows system window dump (color) (rw-)

YUV*

CCIR 601 4:1:1 (rw-)

r

読み込み可能

w

書き込み可能

+

複数ファイルを扱うことが可能

*

ネイティブに複数ファイルを扱うことが可能

オプション

-adjoin

複数のファイルをひとつのファイルにまとめる。
複数のファイルをサポートしているフォーマットが出力ファイルになっていることが必要。
convert -adjoin tmp1.jpg tmp2.jpg tmp3.jpg adjoin.tga

-antialias

アンチエイリアシングを行なう。
convert -antialias $pic3 antialias.jpg

-append

append an image sequence
convert -append $pic1 $pic2 $pic3 append.jpg

-average

average an image sequence
convert -average $pic1 $pic2 average.jpg

-blur factor

apply a filter to blur the image
convert -blur 80 $pic1 blur.jpg

-border geometry

surround image with a border of color
convert -border 10x5 $pic1 border.jpg

-bordercolor color

border color
convert -bordercolor '#ff0000' -border 10x5 $pic1 bordercolor.jpg

-box color

color for annotation bounding box

-cache threshold

megabytes of memory available to the pixel cache

-charcoal factor

simulate a charcoal drawing

-coalesce

merge a sequence of images

-colorize value

colorize the image with the pen color

-colors value

preferred number of colors in the image
convert -colors 4 $pic1 colors.jpg

-colorspace type

alternate image colorspace
convert -colorspace YUV -colors 4 $pic1 colorspace.jpg

-comment string

annotate image with comment
convert -comment "%f %wx%h %bkbytes" $pic1 comment.jpg

-compress type

type of image compression

-contrast

enhance or reduce the image contrast
convert -contrast $pic1 contrast.jpg

-crop geometry

preferred size and location of the cropped image
convert -crop 100x100+50+50 $pic1 crop.jpg

-cycle amount

cycle the image colormap
convert -cycle 2 $pic1 cycle.jpg

-delay value

display the next image after pausing

-deconstruct

break down an image sequence into constituent parts

-density geometry

vertical and horizontal density of the image

-depth value

depth of the image

-despeckle

reduce the speckles within an image
convert -contrast $pic1 contrast.jpg

-display server

obtain image or font from this X server

-dispose method

GIF disposal method

-dither

apply Floyd/Steinberg error diffusion to image
convert -dither -colors '0/0/50' $pic1 dither.jpg

-draw string

annotate the image with a graphic primitive
convert -linewidth 2 -pen 'rgb:00/00/ff' -draw 'circle 100,100 150,150' $pic3 draw.jpg

-edge factor

apply a filter to detect edges in the image
convert -edge 50.0 $pic1 edge.jpg

-emboss

emboss an image
convert -emboss tmp3.jpg emboss.jpg

-enhance

apply a digital filter to enhance a noisy image
convert -enhance $pic1 enhance.jpg

-equalize

perform histogram equalization to an image

-filter type

use this filter when resizing an image

-flip

flip image in the vertical direction

-flop

flop image in the horizontal direction

-font name

X11 font for displaying text

-frame geometry

surround image with an ornamental border

-fuzz distance

colors within this distance are considered equal

-gamma value

level of gamma correction

-geometry geometry

perferred size or location of the image

-gravity type

vertical and horizontal text placement

-implode amount

implode image pixels about the center

-interlace type

None, Line, Plane, or Partition

-label name

assign a label to an image

-layer type

Red, Green, Blue, Matte

-linewidth value

width of line in pixels

-label name

assign a label to an image

-loop iterations

add Netscape loop extension to your GIF animation

-map filename

transform image colors to match this set of colors

-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 an mosaic from an image sequence

-negate

replace every pixel with its complementary color

-noise

add or reduce noise in an image

-normalize

transform image to span the full range of colors

-opaque color

change this color to the pen color

-page geometry

size and location of an image canvas

-paint radius

simulate an oil painting

-pen color

color for annotating or changing opaque color

-ping

efficiently determine image characteristics

-pointsize value

pointsize of Postscript font

-preview type

image preview type

-profile filename

add ICC 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

-roll geometry

roll an image vertically or horizontally

-rotate degrees

apply Paeth rotation to the image

-sample geometry

scale image with pixel sampling

-scale geometry

resize image

-scene value

image scene number

-segment values

segment an image

-seed value

pseudo-random number generator seed value

-shade degrees

shade the image using a distant light source

-sharpen factor

apply a filter to sharpen the image

-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

-swirl degrees

swirl image pixels about the center

-texture filename

name of texture to tile onto the image background

-threshold value

threshold the image

-transparent color

make this color transparent within the image

-treedepth value

depth of the color classification tree

-units type

Inch, Centimeter, or Undefined

-verbose

print detailed information about the image

-view

FlashPix viewing transforms

-wave geometry

alter an image along a sine wave

バージョン

Version: @(#)ImageMagick 5.1.1 00/02/01 Q:8 cristy@mystic.es.dupont.com