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Soft Morphology in the HSV Color Space: Definitions and Implementation

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In this paper a new approach to soft color image mathematical morphology, called soft vector morphology, is presented. Its main characteristic is that it is compatible to soft gray-scale morphology. Furthermore, it is vector preserving technique. The primary and secondary soft vector morphological operations are defined. Then experimental results provided demonstrate that - analogously to their grayscale counterparts - soft vector morphological transforms are advantageous regarding small detail preservation and impulse noise attenuation from color images, in comparison to the corresponding standard vector morphological transforms recently introduced in Ref. 8. Finally, a new hardware FPGA structure capable of executing soft/standard vector erosion and dilation is presented. It processes two-dimensional 24-bit resolution color images by means of a 3 × 2-pixel 24-bit resolution color structuring element. Its function is fully pipelined: after initialization time it produces an output result per one clock-cycle. MAX+PLUS II software of Altera Corporation was employed for the design and simulation of the proposed hardware structure. The typical system clock frequency is 40MHz.
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Document Type: Research Article

Publication date: January 1, 2002

More about this publication?
  • Started in 2002 and merged with the Color and Imaging Conference (CIC) in 2014, CGIV covered a wide range of topics related to colour and visual information, including color science, computational color, color in computer graphics, color reproduction, volor vision/psychophysics, color image quality, color image processing, and multispectral color science. Drawing papers from researchers, scientists, and engineers worldwide, DGIV offered attendees a unique experience to share with colleagues in industry and academic, and on national and international standards committees. Held every year in Europe, DGIV papers were more academic in their focus and had high student participation rates.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual papers for details.

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