Method, apparatus and system for providing reproducible digital imagery products

• US 9,699,388 B2
• Filed: 05/25/2006
• Issued: 07/04/2017
• Est. Priority Date: 12/16/2005
• Status: Expired due to Fees

• Current Assignee: Magnolia Licensing LLC (IP Edge LLC)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Pines, Joshua, Kutcka, Chris
• Primary Examiner(s): Chae, Kyu
• Application Number:
  US12/086,512
• Publication Number:
  US 20100220971A1
• Time in Patent Office: 4,058 Days
• CPC Class Codes: H04N 5/253 Picture signal generating by scanning motion picture films or slide opaques, e.g. for telecine scanning details therefor H04N3/36 ; standard conversion therefor H04N7/0112

Abstract

The present invention provides a method, apparatus and system for providing reproducible digital imagery products from captured image content and for the color correction of the reproducible digital imagery products. In one embodiment, the present invention provides a log video signal comprising at least density values for the contrast levels of the original image content for enabling a quantitative assessment of the image content information for providing repeatable and reproducible values from which a cinematographer/director of photography could order the color correction or adjustment of the image content in a reproducible manner understood device by a color correction specialist or “timer”.

Claims

1. A method for providing a reproducible digital imagery product from image content on a color device, comprising:

generating a logarithmic video signal representation of said image content having representative density values created by separating each color in the image content and mapping densities between separated colors so as to establish corresponding contrast values for said image content, said generating being performed on the color device, which comprises a processor and a memory;

providing a logarithmic data file that includes information relating to an image content reproduced from a recorded film using a first output port, and simultaneously generating and providing real time logarithmic video signals using a second output port, said logarithmic video signals having a lower resolution and compression quality than that of said image content reproduced from the recorded film, wherein only output from said second output port is sent to a color correction device;

generating a signal that causes a message to be displayed to a user which requests required information regarding a dynamic range of digitally captured video content and providing density offsets for each separated colors to the user; and

applying the representative density values to color correct at least one of said logarithmic video signal representation of said image content and said image content.

2. The method of claim 1, wherein respective density offsets are applied to said density values to color correct at least one of said logarithmic video signal representation of said image content and said image content.

3. The method of claim 2, wherein said density offsets comprise linear offsets.

4. The method of claim 2, wherein said density offsets are configured to provide values between 0 and 50 to emulate analog printer light offset values.

5. The method of claim 1, wherein at least one of said log video signal representation and said image content are color corrected for a specific display environment.

6. The method of claim 1, wherein the density values of said logarithmic video signal representation comprise respective grey scale density values.

7. The method of claim 1, wherein said log video signal representation provides respective grey scale density values for different colors of said image content on a scene by scene basis.

8. The method of claim 1, wherein said logarithmic video signal representation is used to create dailies.

9. The method of claim 1 wherein said logarithmic video signal representation comprises a low resolution and low compression signal, which is acceptable for producing dailies.

10. The method of claim 1, wherein said logarithmic video signal representation is used as a starting point for a digital intermediate.

11. The method of claim 1, wherein said logarithmic video signal representation comprises respective density values for different colors of said image content.

18. The method of claim 1, further comprising modifying color densities further after receiving user input for performing further color corrections.

12. A color device for providing a reproducible digital imagery product from image content, comprising:

a processor and a memory configured to generate a respective logarithmic video signal representation of said image content, said logarithmic video signal representation comprising respective density values for contrast levels of said image content;

an input component for receiving film content and a plurality of output ports wherein a first output port contains a logarithmic data file that contains information relating to an image content reproduced from a recorded film and a second output port containing logarithmic video signals being generated in real time simultaneously and having a lower resolution and compression quality than that of the image content reproduced from the recorded film, wherein only output from said second output port is sent to a color correction device;

an interface configured to enable an adjustment of the density values of said log video signal representation of said image content for color correcting at least one of said logarithmic video signal and said image content;

said processor and memory being further configured to generate a signal that causes a message to be displayed to a user which requests required information regarding a dynamic range of digitally captured video content, and providing density offsets for each separated colors to the user.

13. The color correction device of claim 12, wherein said interface comprises at least one of a wireless remote control, a pointing device, a voice recognition system, a touch screen, on screen menus, buttons, and knobs.

14. A system for providing a reproducible digital imagery product from image content and color correction thereof, comprising:

a capture device for capturing said image content;

a color device for generating a logarithmic video signal representation of said captured image content, said logarithmic video signal representation comprising respective density values for contrast levels of said image content such that the density values are generated by separating each color in the image content and mapping densities between separated colors;

the color device including a first output port providing a logarithmic data file that contains information relating to the image content and a second output port containing logarithmic video signals being generated in real time simultaneously and having a lower resolution and compression quality than that of the image content, wherein only output from said second output port is sent to a color correction device;

said color device further configured to generate a signal that causes a message to be displayed to a user which requests required information regarding a dynamic range of digitally captured video content and providing density offsets for each separated colors to the user; and

an interface configured to enable an adjustment of the density values of said log video signal representation of said image content for color correcting at least one of said logarithmic video signal representation and said image content.

15. The system of claim 14, further comprising a storage means for storing an adjusted logarithmic video signal representation of said image content.

16. The system of claim 14, further comprising a storage means for storing said logarithmic video signal representation from said color device before a color correction.

17. The system of claim 14, further comprising a display device for displaying a converted log video signal representation such that the image on the display device matches a final film print look.