Acta Optica Sinica, Volume. 3, Issue 4, 303(1983)
Spatial filtering real-time spatial frequency and density pseudocolor enocding
A real-time image pseudocolor encoding method for spatial frequency and density encoding is presented. Pseudocolor images are obtained through color spatial filtering at a spatial frequency plane. The spatial frequency pseudocolor encoding is accomplished by two-dimensional color spatial filters. The density pseudocolor encoding is obtained through contrast reversal of color image, and the contrast reversal is accomplished by two-color halfwave phase filtering. ERTS and airborne remote sensing images are processed directly. Experimental results showed that this method is effective.
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HE MINGXIA, LIU ZHISHEN. Spatial filtering real-time spatial frequency and density pseudocolor enocding[J]. Acta Optica Sinica, 1983, 3(4): 303