Hello Mongolia,
According to a Museum of Broadcast Communications article on
colorization, the color used for the object ?is determined through
common sense (green for grass, blue for the ocean) or by
investigation. For example, movie studio photographs or costume vaults
may provide guidance as to what color a hat should be. In cases where
no such guidance is available, colorists pick their own colors,
presumably with some aesthetic sensibility.?
?The process of colorizing a movie begins with a monochrome film
print, preferably a new print struck from the original negative. From
the film print, a high?quality videotape copy is made. Technicians,
aided by a computer, determine the gray level of every object in every
shot and note any movement of objects within shots. A computer adds
color to each object, while keeping gray levels the same as in the
monochrome original. Which color to use for which object is determined
through common sense (green for grass, blue for the ocean) or by
investigation. For example, movie studio photographs or costume vaults
may provide guidance as to what color a hat should be. In cases where
no such guidance is available, colorists pick their own colors,
presumably with some aesthetic sensibility.?
Read more here:
http://www.museum.tv/archives/etv/C/htmlC/colorization/colorization.htm
A good source for information is ?How do they color old
black-and-white movies? on the How Stuff Works website.
http://entertainment.howstuffworks.com/question184.htm
?A major difficulty with colorization has been its
labor-intensiveness. For example, in order to colorize a still image
an artist typically begins by dividing the image into regions, and
then proceeds to assign a color to each region. This approach, also
known as the segmentation method, is time consuming and requires a
great deal of painstaking work on dividing the picture into correct
segments.?
Computer-assisted method for colorizing
?A computer-assisted method for colorizing was developed by a team of
researchers at the Hebrew University of Jerusalem's Benin School of
Computer Science and Engineering. The new method is an interactive
process that does not require precise, manual, region detection, nor
accurate tracking and is based on the simple premise that nearby
pixels in space and time that have similar gray levels should also
have similar colors.?
http://www.answers.com/topic/film-colorization
Read about it here:
http://www.cs.huji.ac.il/~yweiss/Colorization/
?In our approach an artist only needs to annotate the image with a few
color scribbles, and the indicated colors are automatically propagated
in both space and time to produce a fully colorized image or sequence.
We demonstrate that high quality colorizations of stills and movie
clips may be obtained from a relatively modest amount of user input.?
Check out the examples at the bottom of the page at the following link:
http://www.cs.huji.ac.il/~yweiss/Colorization/colorization-siggraph04.pdf
Search terms:
Colorization of black and white films
I hope the information provided is helpful!
Best regards,
Bobbie7 |
