+ Ai-4^RIt^RIt^RIHt^RIHt^RIHtRt Rt R RR/Rllt R RR/R llt R RR/R llt R RR/R lltR#)N)gaussian)convert_to_float)resizec \P!V4pVe/W@P,pV3VP^, ,pMRp\VVVVVVR7V#)z?Return image with each channel smoothed by the Gaussian filter.N)sigmaoutmodecval channel_axis)np empty_likendimr)imagerr r r smootheds&&&&& X/var/www/html/photoedit/myenv/lib/python3.14/site-packages/skimage/transform/pyramids.py_smoothr s^}}U#H#jj0 EJJN+      !  Oc*V^8:d \R4hR#)z#scale factor must be greater than 1N) ValueError)factors&r _check_factorr s {>??rr c aa\S4\W4pSeoSVP,o\;QJd+.VV3Rl\ VP 44FNK 5M$!VV3Rl\ VP 444pMF\;QJd!.V3RlVP 4FNK 5M!V3RlVP 44pVf^S,R, p\ WWES4p \WW4VRR7p V #)aSmooth and then downsample image. Parameters ---------- image : ndarray Input image. downscale : float, optional Downscale factor. sigma : float, optional Sigma for Gaussian filter. Default is `2 * downscale / 6.0` which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution. order : int, optional Order of splines used in interpolation of downsampling. See `skimage.transform.warp` for detail. mode : {'reflect', 'constant', 'edge', 'symmetric', 'wrap'}, optional The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to 'constant'. cval : float, optional Value to fill past edges of input if mode is 'constant'. preserve_range : bool, optional Whether to keep the original range of values. Otherwise, the input image is converted according to the conventions of `img_as_float`. Also see https://scikit-image.org/docs/dev/user_guide/data_types.html channel_axis : int or None, optional If None, the image is assumed to be a grayscale (single channel) image. Otherwise, this parameter indicates which axis of the array corresponds to channels. .. versionadded:: 0.19 ``channel_axis`` was added in 0.19. Returns ------- out : array Smoothed and downsampled float image. References ---------- .. [1] http://persci.mit.edu/pub_pdfs/pyramid83.pdf c3<"TF6wrVS8wd'\P!V\S4, 4MTxK8 R#5iNmathceilfloat.0axdr downscales& r !pyramid_reduce.._s9 /02\/ADIIa% ** +q H/>Ac3p<"TF+p\P!V\S4, 4xK- R#5irrr!r#r$s& rr%r&ds'O;a$))Ai(8$899;36@Forderr r anti_aliasing)rrrtuple enumerateshaperr) rr$rr-r r preserve_ranger out_shaperrs &f&&&&&d rpyramid_reducer4%sj) U 3E#ejj0 E "5;;/ EE "5;;/  EO5;;OEEO5;;OO  }I #uT>H 5$e C Jrc aa\S4\W4pSeoSVP,o\;QJd+.VV3Rl\ VP 44FNK 5M$!VV3Rl\ VP 444pMF\;QJd!.V3RlVP 4FNK 5M!V3RlVP 44pVf^S,R, p\ WW4VRR7p \WWES4p V #)aUpsample and then smooth image. Parameters ---------- image : ndarray Input image. upscale : float, optional Upscale factor. sigma : float, optional Sigma for Gaussian filter. Default is `2 * upscale / 6.0` which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution. order : int, optional Order of splines used in interpolation of upsampling. See `skimage.transform.warp` for detail. mode : {'reflect', 'constant', 'edge', 'symmetric', 'wrap'}, optional The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to 'constant'. cval : float, optional Value to fill past edges of input if mode is 'constant'. preserve_range : bool, optional Whether to keep the original range of values. Otherwise, the input image is converted according to the conventions of `img_as_float`. Also see https://scikit-image.org/docs/dev/user_guide/data_types.html channel_axis : int or None, optional If None, the image is assumed to be a grayscale (single channel) image. Otherwise, this parameter indicates which axis of the array corresponds to channels. .. versionadded:: 0.19 ``channel_axis`` was added in 0.19. Returns ------- out : array Upsampled and smoothed float image. References ---------- .. [1] http://persci.mit.edu/pub_pdfs/pyramid83.pdf c3t<"TF-wrVS8wd\P!SV,4MTxK/ R#5irrr)r!r"r#r upscales& rr%!pyramid_expand..s3 /')L&8DIIgk "a ?/s58c3^<"TF"p\P!SV,4xK$ R#5irr7)r!r#r8s& rr%r9s!F+Q$))GaK00+s*-r+Fr,)rrrr/r0r1rr) rr8rr-r r r2r r3resizedrs &f&&&&&d rpyramid_expandr<rsj' U 3E#ejj0 E "5;;/ EE "5;;/  EF%++FEEF%++FF  }G c! t5G '$l ;C Jrc #"\V4\W4p^p VPp Tp VxW8wd:V ^, p \V VVVVVVR7p T p T p V Pp W8XdR#V xK?R#5i)aYield images of the Gaussian pyramid formed by the input image. Recursively applies the `pyramid_reduce` function to the image, and yields the downscaled images. Note that the first image of the pyramid will be the original, unscaled image. The total number of images is `max_layer + 1`. In case all layers are computed, the last image is either a one-pixel image or the image where the reduction does not change its shape. Parameters ---------- image : ndarray Input image. max_layer : int, optional Number of layers for the pyramid. 0th layer is the original image. Default is -1 which builds all possible layers. downscale : float, optional Downscale factor. sigma : float, optional Sigma for Gaussian filter. Default is `2 * downscale / 6.0` which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution. order : int, optional Order of splines used in interpolation of downsampling. See `skimage.transform.warp` for detail. mode : {'reflect', 'constant', 'edge', 'symmetric', 'wrap'}, optional The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to 'constant'. cval : float, optional Value to fill past edges of input if mode is 'constant'. preserve_range : bool, optional Whether to keep the original range of values. Otherwise, the input image is converted according to the conventions of `img_as_float`. Also see https://scikit-image.org/docs/dev/user_guide/data_types.html channel_axis : int or None, optional If None, the image is assumed to be a grayscale (single channel) image. Otherwise, this parameter indicates which axis of the array corresponds to channels. .. versionadded:: 0.19 ``channel_axis`` was added in 0.19. Returns ------- pyramid : generator Generator yielding pyramid layers as float images. References ---------- .. [1] http://persci.mit.edu/pub_pdfs/pyramid83.pdf )r N)rrr1r4)r max_layerr$rr-r r r2r layer current_shapeprev_layer_image layer_image prev_shapes&&&&&&&&$ rpyramid_gaussianrDsB) U 3E EKKM K    $      % # &#))   & + sA,A.c #*aa"\S4\W4pVf^S,R, pVPp \WWVS4p W , xSe<SVP,o\ V 4p V P S4\V 4p MT p VR8Xd5\P!\P!\V 4S44p\V4Fp SeH\;QJd!.VV3Rl\V 44FNK 5M!VV3Rl\V 444p M2\;QJd.V3RlV 4FNK 5M!V3RlV 44p \V V VVVRR7p\WWVS4p VPp W, xK R#5i)aYield images of the laplacian pyramid formed by the input image. Each layer contains the difference between the downsampled and the downsampled, smoothed image:: layer = resize(prev_layer) - smooth(resize(prev_layer)) Note that the first image of the pyramid will be the difference between the original, unscaled image and its smoothed version. The total number of images is `max_layer + 1`. In case all layers are computed, the last image is either a one-pixel image or the image where the reduction does not change its shape. Parameters ---------- image : ndarray Input image. max_layer : int, optional Number of layers for the pyramid. 0th layer is the original image. Default is -1 which builds all possible layers. downscale : float, optional Downscale factor. sigma : float, optional Sigma for Gaussian filter. Default is `2 * downscale / 6.0` which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution. order : int, optional Order of splines used in interpolation of downsampling. See `skimage.transform.warp` for detail. mode : {'reflect', 'constant', 'edge', 'symmetric', 'wrap'}, optional The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to 'constant'. cval : float, optional Value to fill past edges of input if mode is 'constant'. preserve_range : bool, optional Whether to keep the original range of values. Otherwise, the input image is converted according to the conventions of `img_as_float`. Also see https://scikit-image.org/docs/dev/user_guide/data_types.html channel_axis : int or None, optional If None, the image is assumed to be a grayscale (single channel) image. Otherwise, this parameter indicates which axis of the array corresponds to channels. .. versionadded:: 0.19 ``channel_axis`` was added in 0.19. Returns ------- pyramid : generator Generator yielding pyramid layers as float images. References ---------- .. [1] http://persci.mit.edu/pub_pdfs/pyramid83.pdf .. [2] http://sepwww.stanford.edu/data/media/public/sep/morgan/texturematch/paper_html/node3.html Nr+c3<"TF6wrVS8wd'\P!V\S4, 4MTxK8 R#5irrr s& rr%$pyramid_laplacian..s95EB463E !eI../1L5r'c3p<"TF+p\P!V\S4, 4xK- R#5irrr)s& rr%rGs'U}!diiE),<(<==}r*Fr,)rrr1rrlistpopr/rrlogmaxranger0r)rr>r$rr-r r r2r r@smoothed_imageshape_without_channelsr?r3 resized_images&&f&&&&&d rpyramid_laplacianrR$s`J) U 3E }I #KKMU4|DN   #ejj0 !%m!4""<0!&'=!>!.BIIdhhs+A'BINO y!  #&}5&}5I U}UU}UUI    !t<P%++ ,,)"sC&F+AF2A!F)NrreflectrF)rIrSNrrTrF)rnumpyr _shared.filtersr _shared.utilsr_warpsrrrr4r<rDrRrrrZsf &,,@ JJZIIXccLt-t-r