Image processing

Hi... I have written a code to detect a particular point in images. That I have done successfully.. Now I want that code to work for whole database of images. i-e when we run the code every image of database is processed and resultant image is place in some folder with a "mark" on the detected coordinates.... someone please help me in this???

Answer 1

[Sean de Wolski]

Use a for-loop to work through all of the files in the output from dir.

doc dir

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imshow('cameraman.tif');
hold on;
plot(170,75,'b*','markersize',10);

Add blue flash to cameradude's camera.

[Khawaja Asim]

and what is the syntax to make some mark like "+" "x" like on the detected points...??

[Image Analyst]

plot(x, y, '+');

x and y correspond to pixel locations (column and row respectively). (See LineSpec for a list of marker specifiers).

Answer 2

[Khawaja Asim]

dear this plots the point.. but it doesnot show the point on original image.. I want that image is displayed with those particular pixels location highlighted with that "+" symbol... thanks

[Image Analyst]

Did you set "hold on" after you called imshow() and before you called plot()? Otherwise plot() will blow away your image.