Tag Archives: Gaussian

Practical Gaussian filtering: Binomial filter and small sigma Gaussians

Gaussian filters are the bread and butter of signal and image filtering. They are isotropic and radially symmetric, filter out high frequencies extremely well, and just look pleasant and smooth. In this post I will cover two of my favorite … Continue reading

Posted in Code / Graphics | Tagged , , , , , , , | 2 Comments

Separable disk-like depth of field

This is a short note accompanying shadertoy:¬†https://www.shadertoy.com/view/lsBBWy . It is direct implementation of “Circularly symmetric convolution and lens blur” by Olli Niemitalo¬†(no innovation on my side, just a toy implementation) and got inspired by Kleber Garcia’s Siggraph 2017 presentation “Circular … Continue reading

Posted in Code / Graphics | Tagged , , , , , , , , , , | 2 Comments