5 results about "Pigmented spots" patented technology

The invention provides a facial skin flaw enhancement method based on a Lab color space. The method comprises the following steps: firstly, acquiring an RGB face image and converting the RGB face image into a CIE Lab color space with uniform perception; then, performing differentiation treatment according to the manually selected skin flaw type: for the vascular flaw, extracting statistical characteristics of a component and driving adaptive nonlinear transformation, and generating a grey-scale map which highlights the red flaw; for pigment flaws, nonlinear transformation is carried out on the component L, and then collaborative linear weighting and feature amplification are carried out on the component L, the component a and the component b, so that a grey-scale map with highlighted pigment spots is generated. And finally, coloring the grey-scale map in the Lab color space through adjustable parameters to generate a high-contrast color enhanced image. The method overcomes the dependence on hardware and training data in the prior art, can clearly and adaptively enhance various flaws such as acnes, couperose streaks and color spots, shows robustness under different illumination, and can be widely applied to clinical beauty, later photography and real-time video processing.

The present invention relates to the technical field of polymer materials, and particularly to a non-polar resin composite material, a preparation method therefor, and a use thereof. Specifically, disclosed in the present invention is a non-polar resin composite material, comprising, in parts by weight, the following components: 90-110 parts of a non-polar resin, 0.1-2 parts of a green organic pigment, 0.5-3 parts of a yellow organic pigment, 0.1-0.5 parts of a light stabilizer, and 0.5-3 parts of water. The present invention provides a non-polar resin composite material in which no pre-colored masterbatch is used. The material has a highly saturated yellow-green color and can avoid significant discoloration of yellow-green organic pigments under light conditions. The present invention can achieve good dispersion of pigments in a system without pretreatment of the pigments in the earlier stage, resulting in few pigment spots on the surface of the prepared material. The present invention can be applied to the manufacturing of food contact products and household appliances.

L'OREAL The present invention relates to methods for obtaining a plant extract from flowering tops of Inula helenium, as well as plant extracts of Inula helenium, compositions comprising them, and their implementation to prevent and / or treat a pigmentary disorder, in particular (i) a pigmentary spot, in particular an actinic lentigo, (ii) a post-inflammatory hyperpigmentation, in particular linked to a scar or an unsightly disorder following an inflammatory skin manifestation, in particular a scar or an acne mark or (iii) a melasma.

This application provides a pupil recognition method, system, medium, product, and terminal based on center localization. It performs a horizontal gradient transformation operation on distortion-corrected human eye image data to generate eye gradient amplitude image data. Through gradient transformation, it extracts edge features of the pupil and iris regions, effectively separating the pupil edge from complex eye structures such as eyelid occlusion, eyelash projection, and iris pigment spots / crypts, avoiding misidentification of these interferences as pupil edges and improving the accuracy of pupil edge feature recognition. Combining the distortion-corrected human eye image data and eye gradient amplitude image data, it performs a pupil template matching operation based on the Hough circle detection algorithm. By leveraging the edge features of the gradient amplitude image, it enhances the matching accuracy between the pupil edge and the template, effectively ensuring the continuity and integrity of pupil contour recognition, further improving the reliability and accuracy of pupil measurement results.

The present invention relates to processes for obtaining a plant extract of flowering tops of Inula helenium, and also to Inula helenium plant extracts, to compositions comprising same, and to the uses thereof for preventing and / or treating a chronic inflammatory skin disorder, in particular a pigmentary disorder, in particular (i) a pigmentary spot, in particular an actinic lentigo, (ii) a post-inflammatory hyperpigmentation, in particular associated with a scar or with an unaesthetic disorder consecutive to an inflammatory skin manifestation, in particular a scar or an acne mark, a scar or a rosacea mark or (iii) melasma.