Real-time correction/calibration system for the color spectrum contained on an image output (transmitted) from an image capture and output macro-system, according to a previously defined color spectrum reference

摘要

A real-time correction/calibration system for the color spectrum contained on an image output (transmitted) from an image capture and output macro-system is provided. The system uses a reference of previously defined color spectrum, represented by an inventive solution preferentially in the electro-electronic or computing sectors. The invention is particularly useful when applied to “image capture and output macro-systems” which involve the use of equipment such as TV sets, projectors, data show, notebook, netbook, PDA, tablets, mobile telephone apparatus, film and photographic cameras, among others. The system of correction/calibration of color spectrum of an image captured from an object (Ob) and perceived by the observer (Ob) is provided with attributes such as flexibility, portability, agility, automation, low labor cost and economically viable.

主权项

1. A real-time correction/calibration system for the color spectrum, wherein the conventional architecture of a “direct vision” system is formed by an image capturing device (Ca) such as a video or photographic camera, the captured image of which presents a distorted RGB color set (C2) related to the natural combination (C1), output by the object (Ob) that is directly sent to an image output device (Mo), such as a video monitor, that exactly outputs this distorted RGB color set (C2) that is perceived by the observer (Ho), wherein the system (S) has the architecture characterized by the operational blocks:
at least one certified reference (Re) which is connected to at least one physical reference reading device (Le), which is connected to the image capturing device (Ca); a support hardware (Hw) that supports the physical reference reading device (Le), and an applicable software (Sw) having a correcting routine for a RGB color spectrum, the correcting routine being connected to the image output device (Mo); and wherein the operational logic of the system (S) is characterized by a “phase 1”, for calibrating the image output device (Mo) and a “phase 2” for calibrating the image capturing device (Ca); and
wherein the “phase 1”, for calibrating the image output device (Mo) is characterized by the following macro-steps: Step 01: the operator of the calibration system (S) in possession of the physical reference reading device (Le) captures all the information set of the colors pattern for the certified reference (Re); Step 02: loading of the calibration system (S), wherein the applicable software (Sw) attains the code for the certified reference (Re) automatically or by having it otherwise entered, coming from the physical reference reading device (Le); Step 03: calibration of the colors set for an image, wherein the applicable software (Sw) loaded with the certified reference (Re) and respective files of color comparison, will run for each of the colors to be calibrated, the procedure including the steps of: sending the first reference value to be displayed, by means of a sensor it has effected, a direct comparison of the first color of the natural combination (C1) output by the physical object (Ob) to the displayed reference, running the color adjusting until the point where the calibrated RGB color set (Cr) will be attained like the displayed RGB color set (C4) defined on the image output device (Mo); Step 04: storage of the calibrated RGB color set (Cr); and Step 05: displaying of the calibrated RGB color set (Cr) through the display of the device monitor (Mo).