MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202647074294 A) filed by Koninklijke Philips N. V. on June 15, 2026, for Image Display Improvement In Brightened Viewing Environments.
Inventors include Tichelaar, Johannes Yzebrand; Goris, Roeland Focco Everhard; Van Overmeire, Philippe Antoine Maurice; and Van Gastel, Jeroen Sebastiaan.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: To get better performing adaptation of images to be displayed under variable surround illumination it is proposed to use a control processor (510) arranged to adjust the brightness of displaying on a display (520) of at least a dark sub-set of colors in an input image (IMG_in) in response to a measurement of a level of illumination (Lev_illumdrown) of an environment in which the display resides, wherein the adjustment comprises the establishment of an initial adjustment function (F_adj), for shifting one or more color components of input color component triplets (R'_PQ, G'_PQ, B'_PQ) of pixels of the input image by at least one correction value (Adj_brightn) to obtain corresponding output color component triplets (R'_out, G'_out, B'_out), wherein the adjustment comprises multiplying for values of the one or more color components of input color component triplets (R'_PQ, G'_PQ, B'_PQ) below a threshold value (GAM1) the initial adjustment function (F_adj) by a correction function (F_corr) to obtain a final version of the adjustment function (F_adj) for shifting the input color component triplets (R'_PQ, G'_PQ, B'_PQ), wherein the correction function (F_corr) satisfies a first property of yielding zero output for zero input, a second property of yielding an output value equal to one for an input value equal to the threshold value (GAM1) and a third property of having a zero first derivative at an input value equal to the threshold value (GAM1), or corresponding method of controlled adjustment.
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