CODEWITHSUNDEEP
pythonnumpypython-imaging-library
Edayildiz
Edayildiz

Reputation: 555

saving multiple 3D array of size (22,6,2840) as images

I am generating multiple 3D numpy array of size (22,6,2840),each array containing 22 array of size(6,2840).Now I want to save this array (22,6,2840) as images. I don't know if I can do that. I tried to do this using plt.savefig but it didn't work. I am trying for more than 2 weeks to find how I can do it. Any help would be appreciated.

    signals=np.zeros((22,6,2840))
    t=0
    movement=int(S*256)
    if(S==0):
        movement=_SIZE_WINDOW_SPECTOGRAM        
    while data.shape[1]-(t*movement+_SIZE_WINDOW_SPECTOGRAM) > 0:
        for i in range(0, 22):
            start = t*movement
            stop = start+_SIZE_WINDOW_SPECTOGRAM
            signals[i,:]=wavelet(data[i,start:stop])
        if(signalsBlock is None):
            signalsBlock=np.array([signals])
        else:
            signalsBlock=np.append(signalsBlock, [signals], axis=0)
        nSpectogram=nSpectogram+1
        if(signalsBlock.shape[0]==50):
            saveSignalsOnDisk(signalsBlock, nSpectogram)
            signalsBlock=None
              
        t = t+1

Upvotes: 0

Views: 165

Answers (1)

Anurag Reddy
Anurag Reddy

Reputation: 1215

try using the PyPNG library. You will have to reshape your array to a 2-D format and then write it as a png. The link to the library is here

    image_2d = numpy.reshape(image_3d, (-1, column_count * plane_count))
    pngWriter.write(out, image_2d)

Also, one more method by using PIL Image is provided here. However, that works with mostly RGB style 3 channel images.

Upvotes: 1

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