| banding |
bands,
unwanted steps in ramps (similar to year rings of trees). Often seen in ray
tracing,
rendering or compositing and colour corrections done afterwards to a smaller
colour space (8-bit/colour). |
| binary |
[bi=2] number system
consisting of one and zero |
| bit |
smallest
binary data block with values of 0 or 1 |
| blow
up |
bringing to bigger scale,
magnifying. special PixelPartner service
saving you enormous rendering time |
| CCD |
Charged
Coupled Device, light sensitive sensors |
| cine |
abbreviation for cinema
/cinematographic |
| Cineon |
Kodak
Cineon® digital film system with 30-bit log colour space CineSite
(see also log) |
Cinemascope
(Panavision) |
widescreen process;
the image is squeezed to its half by anamorphotical lenses and stretched to
its original size during projection.
for renderings the aspect ratio of 1:2,35 (unsqueezed 1:1 pixel) or 1:1,175 (distorted
2:1 pixel) is needed
Cinemascope was used for Pixars feature
animation "A Bug's
Life". Not used for commercials |
| compositing |
from
different elements combined image |
| compression |
process to reduce the
size of data packages
different codes are used for loss free (see lzw /rle /zip) and
quality reducing formats (JPEG, GIF...).
For digital film manipulation loss free compression is strongly recommended! |
| CRT |
Cathode Ray
Tube |
| colour
space /depth |
tonal
range, max. number of steps per colour channel (8-bit=256, 10-bit=1024) (see also
lin /log) |
| film
recorder |
output
device, consisting of a high resolution cathode ray tube and a film camera |
| film
scanner |
input
device, designed to record backlit frames with CCD elements |
| gamma |
defines
the middle value of the intensity curve of a grey or colour channel (RGB).
correct gamma calibration is an absolute necessity to judge images on computer
displays
order our information and help kit on gamma
calibration! |
| k |
k =
kilo = 1000, at data blocks 1024 (=10-bit) [y2k=year2000] |
| lin |
linear;
colour space with regular tonal values. commonly used (see also log) |
| log |
logarithmic;
colour space with weighted curve values: more steps in the lower tonal area -
corresponds better with human way of reception than the linear colour space. (see
also Cineon) |
| lzw |
Lempel
Ziff Welch code for loss free data compression (TIFF)
very common, but licence fees appear! |
| lut |
abbreviation
for look
up table. For quick adaptation to colour spaces to compensate
specific machine characteristics |
| morphing |
change
of the appearance by weighted distortion while dissolving |
| pixarlog |
compression
process, developed by Pixar for 3x11-bit
logarithmic values and implemented to the TIFF-6.0 standard. Uses zip compression
(see also lin /log /zip)
was used with 3:4 blow-up at Pixars feature
animation films |
| pixel |
Picture
element, image point |
| rendering |
calculation
of images |
| RGB |
Red
Green Blue, colour system with additive light mixing |
| resolution |
number
of pixels of an image, measured horizontal x vertical |
| rle |
run length
encoded, loss free data compression (different codes for TGA /SGI) |
| sfx |
sound effects (fx) |
| surround |
spatial
sound system, see also Dolby |
| vfx |
visual effects (fx) |
| warping |
change
of the appearance by weighted distortion |
| zip |
another
loss free data compression (TIFF).
also used in popular programs like WinZip, gzip, pkzip for general data |
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