Table 21 List of global binary image features
From: Feature analysis for classification of trace fluorescent labeled protein crystallization images
Symbol | Description | Formulation |
|---|---|---|
N f | No of white pixels in B | \({\sum \nolimits }_{x=1}^{h}{\sum \nolimits }_{y=1}^{w}B(x,y)\) |
μ f | Foreground avg intensity | \(\frac {1}{N_{f}} {\sum \nolimits }_{i=1}^{h} {\sum \nolimits }_{j=1}^{w} I_{gray}(i,j).B(i,j)\) |
σ f | Foreground std devn intensity | \(\sqrt {\frac {1}{N_{f}} {\sum \nolimits }_{i=1}^{h}{\sum \nolimits }_{j=1}^{w} ((\mu _{f} -I_{gray}(i,j)).B(i,j))^{2}}\) |
μ b | Background avg intensity | \(\frac {1}{h*w-N_{f}} {\sum \nolimits }_{i=1}^{h} {\sum \nolimits }_{j=1}^{w} I_{gray}(i,j)(1-B(i,j))\) |
σ b | Background std devn intensity | \(\sqrt {\frac {1}{h*w-N_{f}} {\sum \nolimits }_{i=1}^{h} {\sum \nolimits }_{j=1,B(i,j)=0}^{w} ((\mu _{b} - I_{gray}(i,j)).(1-B(i,j))^{2}}\) |
N | Number of blobs | No. of connected components |
r c | Image fullness | c o n v e x H u l l A r e a(B)/(h∗w) |