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| Happy New Year! That's entertaining! For the record, one can get the points coordinates simply by: points = PixelValuePositions[Binarize@Rasterize[string, "Image"], 0]; |
| Jari, It is true that ImageKeypoints uses SURF, but ImageFeatureTrack does not. Conceptually, ImageFeatureTrack uses corners. Matthias |
| Andrew, There are many people who could help you here, but you may want to provide an example to ground your claim. I do not see a problem with this: [mcode]In[366]:= image = Image[{{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}}, ColorSpace -> "RGB"]; ... |
| David, Your assumption is reasonable. But in practice, the implementation may not meet such criterion due to a variety of factors like for example the need for speed and the sampling of the scale space. The value of ImageKeypoints lies in the many... |
| For my very problem, speed is not an issue. I was hoping to discover an elegant alternative way, perhaps using an arcane (for me) syntactic form of Flatten, Replace, or other related functions. Paritosh's solution expresses well that I would like... |
| I need a loose replication of [url=http://upload.wikimedia.org/wikipedia/commons/3/31/Gradient99.png]this plot[/url] from Wikipedia. My best attempt so far seems to have some unwanted padding around the vector plot, on the bottom layer. [b]Am... |