imshow用法
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发布时间：2022-05-03 10:49
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时间：2022-06-19 04:09
IMSHOW(I,N) displays the intensity image I with N discrete
levels of gray. If you omit N, IMSHOW uses 256 gray levels on
24-bit displays, or 64 gray levels on other systems.
IMSHOW(I,[LOW HIGH]) displays I as a grayscale intensity
image, specifying the data range for I. The value LOW (and
any value less than LOW) displays as black, the value HIGH
(and any value greater than HIGH) displays as white, and
values in between display as intermediate shades of
gray. IMSHOW uses the default number of gray levels. If you
use an empty matrix ([]) for [LOW HIGH], IMSHOW uses
[min(I(:)) max(I(:))]; the minimum value in I displays as
black, and the maximum value displays as white.
IMSHOW(BW) displays the binary image BW. Values of 0 display
as black, and values of 1 display as white.
IMSHOW(X,MAP) displays the indexed image X with the colormap
MAP.
IMSHOW(RGB) displays the truecolor image RGB.
IMSHOW(...,DISPLAY_OPTION) displays the image, calling
TRUESIZE if DISPLAY_OPTION is 'truesize', or suppressing the
call to TRUESIZE if DISPLAY_OPTION is 'notruesize'. Either
option string can be abbreviated. If you do not supply this
argument, IMSHOW determines whether to call TRUESIZE based on
the setting of the 'ImshowTruesize' preference.
IMSHOW(x,y,A,...) uses the 2-element vectors x and y to
establish a nondefault spatial coordinate system, by
specifying the image XData and YData. Note that x and y can
have more than 2 elements, but only the first and last
elements are actually used.
IMSHOW(FILENAME) displays the image stored in the graphics
file FILENAME. IMSHOW calls IMREAD to read the image from the
file, but the image data is not stored in the MATLAB
workspace. The file must be in the current directory or on
the MATLAB path.
H = IMSHOW(...) returns the handle to the image object
created by IMSHOW.
Class Support
-------------
The input image can be of class logical, uint8, uint16,
or double, and it must be nonsparse.
Remarks
-------
You can use the IPTSETPREF function to set several toolbox
preferences that modify the behavior of IMSHOW:
- 'ImshowBorder' controls whether IMSHOW displays the image
with a border around it.
- 'ImshowAxesVisible' controls whether IMSHOW displays the
image with the axes box and tick labels.
- 'ImshowTruesize' controls whether IMSHOW calls the TRUESIZE
function.
For more information about these preferences, see the
reference entry for IPTSETPREF.
See also imread, imview, iptgetpref, iptsetpref, subimage, truesize, warp, image, imagesc.
Reference page in Help browser
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