FARBANPASSUNG VON FARBIGEN BILDDATEN
    2.
    发明公开

    公开(公告)号:EP4422198A1

    公开(公告)日:2024-08-28

    申请号:EP23158468.1

    申请日:2023-02-24

    申请人: SICK AG

    摘要: Es wird ein Verfahren zur Farbanpassung von farbigen Bilddaten angegeben, die von einem Bildsensor (18) als eine Vielzahl von Bildpunkten mit jeweils mehreren Farbkomponenten aufgenommen werden, wobei den Bildpunkten jeweils neue, farbangepasste Farbkomponenten zugewiesen werden und die Information, welche neuen Farbkomponenten zuzuweisen sind, durch ein Verfahren des maschinellen Lernens bestimmt wird, das vorab eine Zuordnungsvorschrift bestimmt, die möglichen aufgenommenen Farbkomponenten farbangepasste Farbkomponenten zuweist, wobei dann die Farbanpassung ohne weitere Beteiligung des Verfahrens des maschinellen Lernens mit der Zuordnungsvorschrift erfolgt.

    CAMERA SENSOR-TO-SENSOR COLOR SPACE MAPPING
    3.
    发明公开

    公开(公告)号:EP4325880A1

    公开(公告)日:2024-02-21

    申请号:EP22191207.4

    申请日:2022-08-19

    IPC分类号: H04N23/88

    摘要: Method to determine a mapping relation for image processing comprising: Providing a plurality of color patch spectral reflectances R i ( λ ), i = 1 ... C , and a plurality of illuminant power spectrum distributions I j ( λ ) ,j = 1 ... L , where λ denotes the wavelength of light; Providing capture sensor channel spectral sensitivities S R,c ( λ ) , S G,c ( λ ) and S B,c ( λ ) ; Providing target sensor channel spectral sensitivities S R,t ( λ ) , S G,t ( λ ) and S B,t ( λ ); Determining from the color patch spectral reflectances R i ( λ ), the illuminant power spectrum distributions I j ( λ ) and the capture sensor channel spectral sensitivities S R,c ( λ ) , S G,c ( λ ) and S B,c ( λ ) capture sensor color channel responses [ R c ,G c ,B c ] k , k = 1 ... K; and determining the mapping relation from the color patch spectral reflectances R i ( λ ), the illuminant power spectrum distributions I j ( λ ) and the target sensor channel spectral sensitivities S R,t ( λ ), S G,t ( λ ) and S B,t ( λ ) target sensor color channel responses [ R t ,G t ,B t ] k , k = 1 ... K; wherein the mapping relation comprises a plurality of mapping functions; and wherein each mapping function is determined by a mapping from the capture sensor color channel responses [ R c ,G c ,B c ] k to the target sensor color channel responses [ R t ,G t ,B t ] k , k = 1 ... K.

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND STORAGE MEDIUM

    公开(公告)号:EP4270977A1

    公开(公告)日:2023-11-01

    申请号:EP23169736.8

    申请日:2023-04-25

    发明人: NISHIO, Taisuke

    IPC分类号: H04N23/88 H04N25/131

    摘要: An image processing apparatus includes adjustment means (501) configured to adjust a color of an input image based on a correction level defining a degree to which the color of the input image is to be corrected, calculation means (102) configured to calculate a first white balance control value based on the input image, evaluation means (104, 304, 502) configured to evaluate whether the first white balance control value is valid, and setting means configured to set a second white balance control value based on a result of the evaluation by the evaluation means, wherein the evaluation means (104, 304, 502) determines an evaluation criterion for evaluating whether the first white balance control value is valid based on the correction level determined by the adjustment means (501).