An image processor considered a 750×750 pixels large subset of an image and converted it into gray-scale,
resulting in matrix gIn - a false-color visualization of gIn is shown in the top-left below. He prepared a
two-dim. box filter f1 as a 25×25 matrix with only the 5×5 values in the middle being non-zero – this filter
is shown in the top-middle position below. He then convolved £1 with itself to get £2, before convolving £2
with itself to get f3. In both of the steps, he maintained the 25×25 size.
Next, he convolved gIn with £3 to get gl. Which of the six panels below shows g1? Argue by explaining
all the steps, so far: What did the image processor do when preparing ₤3? What image processing operation
(from gin to g1) did he prepare and what's the effect that can be seen?
Next, he convolved the rows of f3 with filter 1/2 (-1, 8, 0, -8, 1) to get f4 - you find a visualization of
filter f 4 below. He then convolved gIn with f4 to get g2 and you can find the result shown below. What…
3ur
Colors are enchanting and elusive. A multitude of color systems has been proposed
over a three-digits number of years - maybe more than the number of purposes that
they serve...
-
Everyone knows the additive RGB color system – we usually serve light-emitting IT
components like monitors with colors in that system. Here, we use c = (r, g, b) RGB
with r, g, bЄ [0,1] to describe a color c.
=
T
For printing, however, we usually use the subtractive CMY color system. The same
color c becomes c = (c, m, y) CMY (1-c, 1-m, 1-y) RGB Note how we
use subscripts to indicate with coordinate system the coordinates correspond to.
Explain, why it is not possible to find a linear transformation between RGB and CMY
coordinates.
Farbenlehr c
von Goethe
Erster Band.
Roſt einen Defte mit fergen up
Tübingen,
is et 3. Cotta'fden Babarblung.
ISIO
Homogeneous coordinates give us a work-around: If we specify colors in 4D, instead, with the 4th coordinate
being the homogeneous coordinate h so that every actual…
Can someone provide an answer & detailed explanation please? Thank you kindly!
Elementary Statistics: Picturing the World (7th Edition)
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