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: 13-1- .:.(Depth:) ().(Resolution:)

dpi.. .

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: 13-1---::

RGB

: :PNG.JPGBMPTIFFGIF .

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: 13-2-(Intensity Image) .:

.010255.uint8.

images .uint8 .uint8

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: 13-2-- :-

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: 13-2-- :((Indexed Image.1: .1256..2(map:)3

. . .

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: 13-2-- (Indexed Image)-

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: 13-2--

(01).doubleuint8.

uint8010255.

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: 13-2-- RGB

RGBtrue color 0255 255. 00255 ((256*256*25616. .rgb.

0.(r,g,b)rgb1(double)0255(uint8)

.rgb

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: 13-2--

RGB-rgb

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: 13-3--imreadImread :.rgb:m=imread(filename):[m,map]=imread(filename).mapm

:imread. .

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: 13-4--imshow imshow:

imshow(m); rgbimshow(I , map) imshow(filename); :>>imshow(fabric.png)

: >>m=imread(fabric.png);

imshow(m)

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: 13-4--imshow-

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: 13-4--imtoolimtool. imshow:

>>imshow(fabric.png)

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: 13-5--imwriteimwrite.:

imwrite(m , filename);

imwrite(X , map , filename);

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: 13-6--imfinfo : ....

: info=imfinfo(filename)

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: :-13-7

bw=im2bw(m , level)

bw=im2bw(x , map , level)

level(.01)m=ind2gray(x , map);

[x,map]=gray2ind(m);

[x,map]=rgb2ind(m);

m=ind2rgb(x , map);

m=rgb2gray(m); .

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: 13-8-uint8

.double.uint8:

m=double(m);m=im2uint8(m);

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: 13-9-.:

:imresize:imrotate:imcrop

.

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: 13-9-- :imresize

: y=imresize(x , a);y=imresize(x , [m , n]); 2.a .1..

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: 13-9-- -imrotate

:m2=imrotate(m , d , [Option] , [crop]). .bilinear, nearestbicubic nearest

. crop. .

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: 13-9-- -imrotate- :

m=imread(ic.tif);

n=imrotate(m , 35);p=imrotate(m , 35,crop);

imshow(n); figure; imshow(p);

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: 13-9-- ::imcrop

I2 = IMCROP(I,RECT)X2 = IMCROP(X,MAP,RECT)RGB2 = IMCROP(RGB,RECT)[A,RECT] = IMCROP(...)

rect. .

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: 13-9-- :imcrop- :

m=imread(pout.tif);

imshow(m);figure;imcrop(m,[size(m)/4,size(m)/2]

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: 13-10-filter2:

m2=filter2(h , m) hm.h .3*35*5

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: 13-10--

fspecialfilter2.:

h=fspecial( , .( :gaussian: sobel: prewitt: laplacian: log: average: unsharp:

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: 13-10---

SobelFilter=fspecial(sobel);

[I,map]=imread('kids.tif');I=ind2gray(I,map);I2=filter2(SobelFilter,I);

imshow( I ); figure; imshow( I2 );

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: 13-11-:

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: 13-11--pixvalimpixel impixel. :

P = IMPIXEL(I)P = IMPIXEL(X,MAP)

P = IMPIXEL(RGB). p .. pixval. imshow.

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: 13-11---improfile:

::

imshow(flowers.tif);improfile;

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: 13-11---imcontour::

im=imread(ic.tif);

imshow(im);figure;imcontour(im,3);

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: 13-11---imhist::

I=imread(flowers.tif);I=rgb2gray(I);

imshow(I);figure;imhist(I);

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: 13-11---

mean2std2:meanstd

... .mean2std2.

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: 13-11-- :

.

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: 13-11-- :

.. :

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: 13-11-- - :.-imadjust

J=imadjust(I , [low , high] , [bottom , top]). . :I=imread(pout.tif);J=imadjust(I , [0.3 , 0.7] , [0 ,1]);

subplot(2,2,1);imshow(I); subplot(2,2,2);imshow(J);

subplot(2,2,3); imhist(I); subplot(2,2,4); imhist(J)

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: 13-11-- - -imadjust-

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: 13-11-- -histeq-histeq. :

I=imread(tire.tif);

J=histeq(I);figure;

subplot(2,2,1);imshow(I);

subplot(2,2,2);imshow(J);subplot(2,2,3);imhist(I);

subplot(2,2,4);imhist(J);

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: 13-11--

-histeq--

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: 13-11-- -

.:..

fspecialfilter2.medfilt2. .(sharpness) .

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: 13-11-- - -:

I = imread(eight.tif);

J= imnoise(I , Salt & pepper , 0.02); % K= filter2(fspecial(average , 3) , J) / 255; % L=medfilt2(J , [3 , 3]); % subplot(2,2,1); imshow( I ); title(Initial Image)

subplot(2,2,2); imshow( J ); title(Noised Image);subplot(2,2,3); imshow( K ); title(Mean Filter);

subplot(2,2,4); imshow( L ); title(Median Filter);

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: 13-11-- - --:

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: -13-12 .

..255100 .

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: -13-12

imshow. (:imshow(m.:imshow(I ,map)

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: Morphological Operations-13-12

. ... :----

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: --13-12 Morphological Operations- ((Dilation & Erosion

. . .

... .

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: --13-12 Morphological Operations- -

.(Mask)3*3 .1 3*39 .

imdilateimerode bwmorph.:.

bw2=imerode(bw1, se);

bw2=imdilate(bw1 , se);

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: --13-12 Morphological Operations- -

bw1=imread(circbw.tif); SE=eye(5);

bw2=imerode(bw1 , SE);

imshow(bw1); figure; imshow(bw2);

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: --13-12 Morphological Operations- Open & Close. .

.. .

bwmorph. (. (

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: --13-12 Morphological Operations- Open & Close-

bw1=imread(circbw.tif);

se= ones(40 , 30); bw2= imerode(bw1 , se);

bw3=imdilate(bw2 , se);

imshow(bw2); figure; imshow(bw3);

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: --13-12 Morphological Operations- :immorph

immorph:.

bw2 = bwmorph(bw1 , operation , [n]); . :.erode fill hbreak open skel remove close dilate

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: --13-12 Morphological Operations- ::immorph-

bw1= imread(circbw.tif); bw2= bwmorph(bw1 , skel , inf)

imshow(bw1); figure; imshow(bw2);

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: .rgbtif.flower-13-1 :. m 180120-

b1b2. :.:m(:,:,2)>120 & m(:,:,1) < 100. .b11b1- cb11b2- . .b1b11b2- b1b2(-(- . text-

http://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/flower.tif

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: tif.fabric13-2- .((grayscale .600dpi. :...

http://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tifhttp://localhost/var/www/apps/conversion/tmp/scratch_6/fabric.tif