Light rays stimulate(กระต
ุ
้น) rods and
cones in the eye’s retina
• Receptors are sensitive to millions of
combinations of red, green and
blue(RGB) light
• Color perception is further
influenced by cultural meaning and
associations of certain colors
Printer color
–Is generated using the CMYK color
model
Resizing and Resampling both refers to
creating a different-sized image from the
original.
• Resizing simply expands or contracts the
image to the new required size
– May introduce interference patterns
• Resampling rebuilds a new pixel pattern
for the same image using the new
required size
– Produce more even and smother(ปกปิด) image