Color digital holography has potential applications in quantitative assessment of small particles in diverse fields where color, size and shape of the particles is required in volume distributions such as aerosols. The authors of this article have proposed a unique way of particle assessment based on color signatures of such particles, by applying color correction with a chromaticity analysis on the three color digital holograms. The ubiquitous speckle noise present in holographic images is reduced with polarization control during recording of these holograms and later applying a Gaussian blur method to the images. A white balance procedure is also applied to the digital holographic images to mitigate the effect of unequal laser power of the three color lasers used. The result is a quantitative assessment of small particles in a 3D volume distribution from a single back scattered color digital hologram.

---

---

 Add Comment

You must log in to add comments.