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Type: Posts; User: jenny_wui

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  1. Replies
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    Actually I found directly copied binaries from...

    Actually I found directly copied binaries from sourceforge site does not work. I compiled and built glew and then used the generated binaries. It works now.
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    OpenGL shading problem

    Hello every body,
    I have installed GLEW from source forge and trying to compile a GLSL porgram on Microsoft Visual Studio 10.0. But i am getting the following errors:...
  3. Thanks for the reply. I think I need to clarify a...

    Thanks for the reply. I think I need to clarify a bit. Suppose my convex hull consists of 30 boundary points. i know the x,y coordinates of all boundary points of convex hull. I am trying to extract...
  4. Thanks for the reply, but if I have a lot of...

    Thanks for the reply, but if I have a lot of boundary points, then I shall have too many triangles. In image processing, there is a function bwconvexhull, which can separate the region, but I don't...
  5. Finding all the points that lie inside a polygon

    Hello, I have separated some portion of a rectangular image which is now a polygon. I would like to consider only the pixels that lie inside the polygon. Could anyone suggest how that can be...
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    Thanks every body for the reply. The boundary...

    Thanks every body for the reply. The boundary cross-section may not be a circle. I would like to apply some smoothing operatoin to the vertices lying on the boundaries. I need some further suggestion...
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    Smoothing the boundary

    1059

    Hello every body, I have uploaded one surface constructed from a number of boundaries. I have used linear interpolation among the boundaries for surface reconstruction.I would like to make...
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    Thank you all for the suggestion.

    Thank you all for the suggestion.
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    3,420

    Smoothing the dges of a polygon

    1032

    Hello every body, I have a polygon consisting of 26 points as shown in the figure. i would just like to smoothen the edges. Could you suggest me some simple way to do it? Thanks in advance.
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    Thanks, a nice implementation has been given to...

    Thanks, a nice implementation has been given to the following link:
    http://en.wikibooks.org/wiki/Algorithm_Implementation/Geometry/Convex_hull/Monotone_chain
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    I need to find convex hull in 2D. Actually I am...

    I need to find convex hull in 2D. Actually I am looking for some relevant code in the net. Thanks.
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    Finding the convex hull of a set of points

    Hello every body, I need to find the convex hull of a set of points. Could any one help me how that can be done. Lastly, I need to find the boundary of the convex hull. Thanks.
  13. Thanks a lot.

    Thanks a lot.
  14. Thank you very much Little body, I have installed...

    Thank you very much Little body, I have installed devil and tried your code. It works fine in loading a jpeg image. Now Could you help a bit more. How to manipulate the pixel values of my image and...
  15. I tried to look at libjpeg website, but didn't...

    I tried to look at libjpeg website, but didn't find any particular direction/ example about the use of it. Please provide me some suggestions.
  16. As i need to manipulate the pixel value and I...

    As i need to manipulate the pixel value and I have already started coding in C, I just need the information from where the image data starts i.e. what is the marker for that as I already have the...
  17. Need some suggestion about reading and displaying an image file

    Hello, I would like to read a jpeg file and display the pixel using glColor3f. I have extracted the pixel dimension from the image.
    Now my quetion is pixelWidth by pixelHeight are the number of...
  18. Thanks for the reply. Could you explain the...

    Thanks for the reply. Could you explain the process a bit more? It would be good if you can provide some link to some examples.
  19. Thank for the reply. Suppose, I would like to...

    Thank for the reply. Suppose, I would like to convert grey values to rgb, i,e, '0' meaning pure blue and '255' pure red with green in between, then how to write in glColor3f(r,g,b)?
  20. A simple question on displaying an image in grey scale

    I have one image displayed in grey scale with pixel values range from (0 to 255). How to display the image in grey scale? I use glColor3f( r, g, b, 1.0) for diplaying colored image. How to use it for...
  21. Need some suggestion about image processing

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    Hello, need some suggestion about image processing to know whether it can be done using C /c++ as I am not familiar with MATLAB. I have attached one image. The arrow in the image show the...
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    I have been able to read my raw images. 256 by256...

    I have been able to read my raw images. 256 by256 with 1 byte per pixel. I have such 30 sections. I would like to do surface rendering. I would like to read the data and reconstruct the model. Could...
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    Need some pre-processing help

    Hello, I have a set of Disc Image File s. I need to reconstruct 3D model out of these images. Could anybody let me know how can I reconstruct 3D model from these images?
    Thanks in advance.
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    Thank you so much for the clarification.

    Thank you so much for the clarification.
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    Thank you very much for the clarification. That...

    Thank you very much for the clarification. That meanstexture coordinate varies according to theta i.e. (1 + cos(theta))/2,(1 +sin(theta))/2).
    Suppose, for each triangle in the disk, the coordinates...
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