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Colorizing Videos / Videos einfärben
this page is dedicated to the new colorizing option, more specifically the semi-automatic colorizing option that comes with Centertracker deluxe. It enables you to colorize your b/w videos so they look as authentic as possible
let me first clarify: the expression semi-automatic indicates that the user is the main player. Thus, semi-automatic means work
okay, you already suspected that, didn't you
I have tried to simplify things as much as possible and to reduce work to a minimum. Here's a screenshot of the settings window to show the available parameters and options, the exact handling and additional details are described and explained in the respective documentation file that comes with the software.
the current version of the GUI for colorizing looks like this (click to enlarge)
as you can see there's a wide range of options to choose a color. Either you can set the RGB values manually with the sliders or you choose them from the list or the color slices, you can even choose colors (if you actually want to re-colorize an already colored video) from the video itself (see screenshots at bottom). The current color slice - zero in this example - is shown on the left (the big colored square). With the color slices you can visually choose any of the 16 million RGB combinations avaiable. The range slider defines the extent of the area around a chosen location in the frame that will be filled with the chosen color. Via the 'Add', 'Delete' buttons you can add or delete areas and their respective colors. The big red X button deletes all chosen areas and colors. To limit areas manually you can draw lines which will cut off parts you do not want to be colorized. This is useful & necessary if neighboring areas have the same brightness but the colors are different. Example: say you hold your hand in front of a blue sky. Both hand and sky may have the same brightness at some bordering pixels. When you have a color image you can easily determine the difference but with a grayscale image that is not so easy. You have to KNOW where the adjacent areas are to make a cut. To remove those cuts again you use the 'x cut' button.
Alternatively you can use the paint brush to paint areas or to remove already colorized areas. By ticking the little sqare below the trackbar of the paint brush you choose between paint and erase (red means erase which is default, gray means paint). You can also choose rectangle areas (via two right clicks in the video window) to paint/ erase areas. Use the red rectangle button to the right of the 'next' button to undo the last paint/ erase action.
The 'next' button is pressed when you're done with the current frame.
There's one slider (the one with the number 512 on top) which can be used to make some funny stuff, more on that later.*
here's the whole screenshot:
in the example you see the main window (on top) where you choose locations for your color areas and make cuts. The chosen colors window can help visualizing areas and furthermore it shows the frames that will be used for a second video if you have ticked the 'cartoonize' box. If you have ticked the numbers box you will see the numbers of the chosen areas so it is easier for you to delete a certain area if necessary. In all three windows you can choose colors.
here's the video where the above screenshots originate from:
* here's what you can do with that slider (512):
so you can for example turn white people into colored people
Centertracker's blur filter applied to smooth the edges a bit: