Top "Convolution" questions

A mathematical operation that combines two signals to generate a third signal.

Fastest method for calculating convolution

Anybody know about the fastest method for calculating convolution? Unfortunately the matrix which I deal with is very large (500x500…

c++ matlab signal-processing convolution template-matching
Simple GLSL convolution shader is atrociously slow

I'm trying to implement a 2D outline shader in OpenGL ES2.0 for iOS. It is insanely slow. As in 5fps …

opengl-es filter opengl-es-2.0 glsl convolution
Convolution computations in Numpy/Scipy

Profiling some computational work I'm doing showed me that one bottleneck in my program was a function that basically did …

python numpy scipy convolution
How to correctly get layer weights from Conv2D in keras?

I have Conv2D layer defines as: Conv2D(96, kernel_size=(5, 5), activation='relu', input_shape=(image_rows, image_cols, 1), kernel_…

keras convolution keras-layer
Convolution along one axis only

I have two 2-D arrays with the same first axis dimensions. In python, I would like to convolve the two …

numpy signal-processing scipy linear-algebra convolution
What are the downsides of convolution by FFT compared to realspace convolution?

So I am aware that a convolution by FFT has a lower computational complexity than a convolution in real space. …

numpy scipy signal-processing fft convolution
How to design deep convolutional neural networks?

As I understand it, all CNNs are quite similar. They all have a convolutional layers followed by pooling and relu …

neural-network deep-learning caffe convolution conv-neural-network
Strided convolution of 2D in numpy

I tried to implement strided convolution of a 2D array using for loop i.e arr = np.array([[2,3,7,4,6,2,9], [6,6,9,8,7,4,3], [3,4,8,3,8,9,7], [7,8,3,6,6,3,4], [4,2,1,8,3,4,6], [3,2,4,1,9,8,3], [0,1,3,9,2,1,4]]) arr2 = np.…

python numpy convolution
Image convolution with even-sized kernel

I want to perform a simple 2D image convolution but my kernel is even-sized. Which indices I should pick for …

image-processing convolution
How to compute accuracy of CNN in TensorFlow

I am new to TensorFlow. I am doing a binary classification with my own dataset. However I do not know …

tensorflow classification convolution