Category Archives: Anvanced Tools
VisualSFM, Tool for creating 3D reconstruction from photos
VisualSFM is a GUI application for 3D reconstruction using structure from motion (SFM). wikipedia: Structure from motion (SfM) refers to the process of estimating three-dimensional structures from two-dimensional image sequences which may be coupled with local motion signals. Plus no … Continue reading
MeshLab, Tool for creating and manipulating 3D models
MeshLab is a free and open source alternative for creating 3D models (meshes) from capture data. Plus: lot of features and import and export formats Minus: crashes without informing the reason ie. need to save the work often Example 3D … Continue reading
SCENECT with Kinect, Tools for capturing house layouts in 3D
SCENECT is a free tool from FARO to capture 3D point cloud of objects and environments. There are several other tools for the similar 3D capture, and the choice depends on the goals. In this case the main goal is … Continue reading
Using ImageMagick to reveal existence of hidden steganographic messages with DIY IM-simpleGUI tool
Tools used ImageMagick is a powerfull CLI tool for image processing. For different commands, see their www pages. The following commands are used in this blog: compare convert montage In addition ImageMagick contains image filters like Laplacian (IM, wikipedia), Sobel … Continue reading
Protecting your work by timestamping your file fingerprints
Are you sharing or producing photos, images, music, videos, programs, documents or anything else and you are concerned on how to proof that your work is yours? First of all, you need to be able to show that you really … Continue reading
FileVerifier++ and Karen’s Hasher, GUI Tools for fingerprinting your files with SHA-512
In an earlier blog, a GUI tool called WinMD5 was recommended for maintaining integrity of your files. However, hash calculation based on SHA-512 is more security nowadays. For example, if you need to proof to others, that you possessed a … Continue reading
DIY Spectrometer, and notes on online Spectral Workbench
There exist several variations of DIY spectrometer by using CD or DVD as the main component (ie. generating the rainbow of colors by diffraction from the optical disk grooves). The output is a spectra, light intensity versus wavelength. In Wikipedia: … Continue reading