FW: [vtkusers] How can i get the pixel 2

[Jose David Pfuturi Huisa]

Hello 
Let`s say:
 
image = vtkImageReader()image.SetFileName("earth.ppm")
i want to get the number of pixels, dimensions of imagewhat i want to get each pixel to change it for example the color of one pixel,  gray value, RGB value.I saw a example on Java i.e 
iniAncho = imagenFuente.getWidth( this );iniAlto = imagenFuente.getHeight( this );
for( int i=0; i < (iniAncho*iniAlto); i++ ) {        // get hexadecimal number of pixel and change it in this case pix[i] = pix[i] & 0xCD0000FF;                ...
          }
How can i do it?
 
thanks in advance



From: chenchenv2003 at hotmail.comTo: daviddarkzero at hotmail.comSubject: RE: [vtkusers] How can i get the pixelDate: Mon, 26 Nov 2007 18:38:31 +0800


do you want to get the gray value or CT value of the pixel? Try GetScalarPointer(double x, double y,double z). It can get the CT value of the pixel(x,y) and z is the slice number of CT.


From: daviddarkzero at hotmail.comTo: vtkusers at vtk.org; daviddarkzero at hotmail.comDate: Mon, 26 Nov 2007 06:51:43 +0100CC: Subject: [vtkusers] How can i get the pixel

Hello everybodyI have a problem with  image processing, How can i get the pixel of an image jpg or BMP?. i want to get dimensions of an image and each pixel, i use Python and i need to segment an image for an OCR. do you have any idea how i can do it :(? thank in advance.José

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