Digital Image Processing,3rd ed. Gonzalez Woods www.ImageProcessingPlace.com Chapter 6 Color Image Processing 。 Example:Use of pseudocolor for highlighting explosives contained in luggage L-1 L- be Intensit Explosive 1992-2008 R.C.Gonzalez R.E.Woods
Digital Image Processing, 3rd ed. www.ImageProcessingPlace.com © 1992–2008 R. C. Gonzalez & R. E. Woods Gonzalez & Woods Chapter 6 Color Image Processing • Example: Use of pseudocolor for highlighting explosives contained in luggage
Digital Image Processing,3rd ed. Gonzalez Woods www.ImageProcessingPlace.com Chapter 6 Color Image Processing Combine several monochrome images into a single color composite. 1g1(x,y) x,)> Transformation T hR(x.y) FIGURE 6.26 A pseudocolor 82(x,y) 6,)> Transformation T Additiona >hc(x,y) processing monochrome images are available gx(x.y) fk(x.y) Transformation Tg hg(x.y) 1992-2008 R.C.Gonzalez R.E.Woods
Digital Image Processing, 3rd ed. www.ImageProcessingPlace.com © 1992–2008 R. C. Gonzalez & R. E. Woods Gonzalez & Woods Chapter 6 Color Image Processing • Combine several monochrome images into a single color composite
Digital Image Processing,3rd ed. Gonzalez Woods www.ImageProcessingPlace.com Chapter 6 Color Image Processing Example: Color coding of multispectral images. TABLE 1.1 Band No. Name Thematic bands Wavelength(um)Characteristics and Uses in NASA's 1 Visible blue 0.45-0.52 Maximum water LANDSAT penetration satellite. 2 Visible green 0.52-0.60 Good for measuring plant vigor 2 Visible red 0.63-0.69 Vegetation discrimination Near infrared 0.76-0.90 Biomass and shoreline mapping Middle infrared 155-1.75 Moisture content of soil and vegetation 6 Thermal infrared 10.4-12.5 Soil moisture:thermal mapping 7 Middle infrared 2.08-2.35 Mineral mapping FIGURE 6.27 (a)-(d)Images in bands 1-4 in Fig.1.10 (see Table 1.1).(e)Color a b composite image obtained by treating (a),(b).and (c)as the red,green,blue com- ponents of an RGB image.(f)Image obtained in the same manner,but using in the red channel the near-infrared image in (d).(Original multispectral images courtesy 1992-2008 R.C.Gonzalez &R.E.Woods of NASA.)
Digital Image Processing, 3rd ed. www.ImageProcessingPlace.com © 1992–2008 R. C. Gonzalez & R. E. Woods Gonzalez & Woods Chapter 6 Color Image Processing • Example: Color coding of multispectral images