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POMATLAB: Alpha blend 2 images with different dimensioned matrices
 

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  1. POMATLAB: Alpha blend 2 images with different dimensioned matrices
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    <p>I'm trying to alpha blend a couple of images, but I'm running into a few problems. I'm kind of developing somebody else's code, so I apologize in advance for possibly not making sense, but I'll be as clear as possible.</p> <p>Originally we made two different plots containing 1 image in each. For the first image, the plot is made by creating the figure and then doing the following:</p> <pre><code>%part of initializing the figure Fig.figim=image(double(zeros(RGBparam.height, RGBparam.width,3))); ... %later we have a loop, then we do: set(Fig.figim, 'CData', imresize(RGBparam.image,[RGBparam.height, RGBparam.width]); </code></pre> <p>where the size of the image <code>(RGBparam.image)</code> is <code>720x1280x3</code></p> <p>For the second image, we do the exact same initilization of the image (except 1 part which I'll put below) and do the following:</p> <pre><code>%the only different in initialization of the figure Fig.figim=imagesc(double(zeros(RGBparam.height, RGBparam.width))); ... %and here is the same loop again set(Fig.figim, 'cdata', outImage) </code></pre> <p>where the size of the image <code>(outImage)</code> is <code>720x1280</code>. <strong>Notice the difference between the dimensions...one is a 2-D matrix and another is a 3-D matrix</strong> (although note, it's still a 2-D image, it just has those 3 extra dimensions for the RGB colors). I guess I just don't know how to deal with this when I go about alpha blending. I'm guessing I'm going to want to combine the images <strong>before</strong> plotting them, alpha blending before and then just plotting the final figure. I don't know how to go about this though, since for my first image it's 3-D and includes the RGB channels, where my second figure does not! Any help giving the next steps in the process of alpha blending these two images, and then plotting them would be great. Thanks!</p>
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    1. USspaderdabomb
    1. USspaderdabomb
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      1. POMATLAB: Alpha blend 2 images with different dimensioned matrices
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    1. COAre you sure it is 3D not that the 3 is not to provide space for RGB and the other image is monocrome?
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      1. USSteve Barnes
    2. COSorry, you are completely right. I didn't necessarily mean the image was 3-D, I just meant that it was a 2-D image and the RGB colors have been split into different dimensions. So yeah, it's exactly what you are saying. I still don't know how to deal with this difference though.
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      1. POMATLAB: Alpha blend 2 images with different dimensioned matrices
      1. USspaderdabomb
    3. COI think I can just create an RGB image out of the monocrome so they have the same dimensions....
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      1. POMATLAB: Alpha blend 2 images with different dimensioned matrices
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