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""5(I> ???s A,,A5zout_range, out_dtyperArrrrctjgdtj}tj||}|j |k(sJy)NrDrrrr)rrr+r rr)r out_dtyperb output_images r%test_rescale_output_dtyperzs> HH^277 3E--eyIL    ** *r/ctjgdtj}tj|tj }t |gd|jtj k(sJy)NrrrrrErK)rrr+r rrArrrbrs r%test_rescale_no_overflowrsN HH^277 3E--erxxHL|]3    )) )r/ctjgdtj}tj|d}t |gd|j tk(sJy)Nrrrrr)rrr+r rrrrrs r%test_rescale_float_outputrsF HH^277 3E--exHL|]3    && &r/ctjgdtj}tjt 5t j|d}dddy#1swYyxYw)Nrrflatr)rrr+rrrr r)rb_s r%*test_rescale_raises_on_incorrect_out_rangersM HH^277 3E z "@  & &u ?@@@s A""A+ctjtjj |d}t |}t j|||f}tj|ddd}|j|jk(sJ|jt|k(sJ|t jk7rdnd}tt||d |tt!||d dy ) zTest a grayscale float imageFr~)9r{Gz?rE) kernel_size clip_limitrSrWr^g)\Y@ghs?N)r rr astronautrr rdstackr equalize_adapthistr;rrfloat16rpeak_snrnorm_brightness_err)rrxadapted snr_decimals r%test_adapthist_grayscalers   DNN, - 4 4U 4 GC 3-C ))S#sO $C)) d#G 99 %% % ==1%8 88 8 *!Kg.E+C961Er/cbtjtj}t j d5}t j dtj|\}}t|dkDsJ dddtj|d}|jdk(sJ|jdk(sJ|j|jk(sJtj|}tt!||d d tt#||d d y#1swYxYw) zTest an RGB color uint16 imageT)recordalwaysrNrr?x&Y[@r){Gz?r^)r img_as_uintr rwarningscatch_warnings simplefilterr r r4rrYrZr;rrrr)rxwhistr$r full_scales r%test_adapthist_colorr s   4>>+ ,C   -h'$..s3k1vzz))#$?G ;;=A   ;;=C   99 %% %++C0JW5wB+J@$Js >D%%D.c&tjtj}t j |j d|j dft}t j||f}tj|}|j |j k7sJ|ddddddf}tj|}|j |j k(sJtt||ddtt||ddy) zTest an RGBA color imagerr)rNrWrr^ga+e?)r rr rrrr;rrr rrrrr)rxalpharr s r%test_adapthist_alphars   DNN, -C GGSYYq\399Q<0 >E ))S%L !C))#.G ==CII %% % aBQBh-C++C0J 99 %% %W5wB+J@&!Lr/cPtjtj}t |}d}tj|dd|dd|f}t j |g|jd|zz}tj|dd}tj|dd}|j|jk(sJ|j|jk(sJt jt j|||jddzz dksJy ) z Test for n-dimensional consistency with float images Note: Currently if img.ndim == 3, img.shape[2] > 4 must hold for the image not to be interpreted as a color image by @adapt_rgb rrr7g?)rrr^rN) r rr rr rrr;r rmeanabs)rxaimg2dimg3d adapted2d adapted3ds r%test_adapthist_grayscale_Ndrs   DNN, -C 3-C A   c!Bq&!Bq&.1 2E HHeW !  12 3E++EqTRI++EqTRI ;;)// )) ) ;;)// )) ) 77266)i 0Ba0G&HHI JT QQ Qr/ctjd}|dz }|jtj}t j |d}tj |tj|k(sJtjd}|dz }|jtj}t j |d}tj |tj|k(sJy)z#Test constant image, float and uintrr^rWrN) rr_rrr rrYrZr)rxrs r%test_adapthist_constantrs ((6 C1HC **RYY C))#q1G 66'?bffWo -- - ((6 C3JC **RZZ C))#q1G 66'?bffWo -- -r/cttjtj}|dz}d||j ddz|j ddzf<d}t dddD]X}tj||d }t|d d |f|d d |fd kDsJt||d d f||d d fd kDrXJy ) zTest border processinggY@rrr^r)rrGrTrNr) r r rr rr;r:r rr)rx border_indexrrs r%test_adapthist_bordersr!s 4$$T^^%56 7C5LC03C ! 399Q<1,,-LRQ'Y --c;3O"71l?#;SL=QRUXXXX"7<?#;Sq=QRUXXXX Yr/c>tj}tj|}t j |d}t j |d}t ||t j |d}t j |d}t ||y)Nrrr))r moonr rr rr)img_uimg_f img_clahe0 img_clahe1s r%test_adapthist_clip_limitr( s} IIKE   e $E,,UqAJ,,UqAJz:.,,UqAJ,,UqAJz:.r/c|jdk(r2t|jt|j}}tj|}tj|}d|j z t j||z jz}t|jj\}}dt j||z zS)zPeak signal to noise ratio of two images Parameters ---------- img1 : array-like img2 : array-like Returns ------- peak_snr : float Peak signal to noise ratio rWrr) ndimr rr rsizersquaresumrrtypelog)img1img2msermax_s r%rrs yyA~diik*HTYY[,Ad   T "D   T "D  /BIIdTk2668 8C$**//*GAt tcz" ""r/c|jdk(rt|t|}}tj|j |j z }|t |j jdz }|S)zNormalized Absolute Mean Brightness Error between two images Parameters ---------- img1 : array-like img2 : array-like Returns ------- norm_brightness_error : float Normalized absolute mean brightness error rWr))r*r rrrrrr.)r0r1ambenbes r%rr1s` yyA~d^Xd^d 66$))+ + ,D TZZ__-a0 0C Jr/ctjdt}tjt d5t j|ddddy#1swYyxYw)Nrrz Incorrect value of `kernel_size`r)rWrWrW)rrrrrrr rrxs r%$test_adapthist_incorrect_kernel_sizer9EsF ''& &C z)K L4##C3444s AA ctjddg}tj|d}|j|jk(sJy)"Check that the shape is maintainedr)g?N)rrr adjust_gammar;)rxresults r%test_adjust_gamma_1x1_shaper>Os; ''1a&/C  " "3 ,F 99 $$ $r/ctjddtjjd}t j |d}t ||y)z4Same image should be returned for gamma equal to onerr?rrAr)N)rr,rArr r<r)rbr=s r%test_adjust_gamma_onerBVs? IIaBHH - 5 5h ?E  " "5! ,Fvu%r/c"tjjdddj|d}t j |d}|j j}t|t|d|j |j k(sJy)z6White image should be returned for gamma equal to zerorrKrFr~r)N) rrandomuniformrr r<rr.rr)rrbr=s r%test_adjust_gamma_zerorF]sw II  af - 4 4U 4 GE  " "5! ,F KK  Ev{51!45 <<5;; && &r/ctjddtjjd}tjgdtjjd}t j |d}t||y)z\Verifying the output with expected results for gamma correction with gamma equal to halfrr?rr@(rrA $'*-0257:<>@BDFrIKMNPQSTVWYrQ\]^`abrr(r8gijklmopqrstuvwyz{|}~rrErrrFrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrGrGrHrHrrrrrrrrrrrrrrrrrrrrrrrrKrTNrr,rArrr r<rrbr`r=s r%test_adjust_gamma_less_onergsu IIaBHH - 5 5h ?ExxA DhhGDHghI L " "5# .Fvx(r/ctjddtjjd}tjgdtjjd}t j |d}t||y)z[Verifying the output with expected results for gamma correction with gamma equal to tworr?rr@(rrrrrrrrrrrrr)r)r)r)r)r)r)r)r^r^r^r^r^r^rWrWrWrWrrrrr7r7r7r7rrrrrrr rrr3r3 rrrr rrrrrArArrrrrrrHrHrr rIrIr rJrJ!"#rrK%&rrL()rMrM+,rN./rrO1rPr4rQ6rR8rrrS;rT=rU?rVArWCrXErYrrZJr[Lr\r]Or^r_RraUrbrcXrd[rerfrg_rirjcrr8rkhrlrnrorprqrrrsrurvrwryxrzr|r}rrrErrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrGrrrrrrrrrrrrrrKr^Nrrs r%test_adjust_gamma_greater_oner/vsu IIaBHH - 5 5h ?ExxA DhhGDHghI L " "5! ,Fvx(r/ctjdddtjjd}t j t 5tj|ddddy#1swYyxYw)NrrKrrr) rr,rArrrrr r<rbs r%test_adjust_gamma_negativer2sV IIaa * 2 26 :E z ")eR()))s A//A8cdtjdtjz}tjt j |dddk(sJy)NrKrrr)r)gammagain)rrrArr r<r8s r%test_adjust_gamma_u8_overflowr6sA bhh/ /C 66(''13?3F GG Gr/ctjddg|}tj|d}|j|jk(sJ|j |k(sJy)r;r)rN)rrr adjust_logr;rrrxr=s r%test_adjust_log_1x1_shaper:sR ''1a& &C  a (F 99 $$ $ <<5  r/c ,tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |d}t||y)z|Verifying the output with expected results for logarithmic correction with multiplier constant multiplier equal to unityrrKrr)rr7rrArr rr)rrOrQrSr rXrZr\)r'rbr*r+rr-rprs)rwrzr~rrrrr)rrrrrrrr)rrrrrrrr)rrrrrrrrG)rrrrrrrrrr)Nrr,rArrr r8rrs r%test_adjust_logr=sy IIaa * 2 26 :Exx * , 0 4 4 4 4 4 hh H  *Fvx(r/c .tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |dd}t||y)zVerifying the output with expected results for inverse logarithmic correction with multiplier constant multiplier equal to unityrrKrr)rr^r7rrrrr)rHr r rJrrrrN)rOrrRrSrr!rXH)r%r&r`rcrQrgrjr8)rmnrtrxr{rrr)rFrrrrrrr)rrrrrrrr)rrrrHrrrrrr)TNr<rs r%test_adjust_inv_logrAs{ IIaa * 2 26 :Exx ( , , - 4 4 4 4 hh H 4 0Fvx(r/ctjddg|}tj|dd}|j|jk(sJ|j |k(sJy)r;r)rr7N)rrr adjust_sigmoidr;rr9s r%test_adjust_sigmoid_1x1_shaperDsT ''1a& &C  $ $S!Q /F 99 $$ $ <<5  r/c .tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |dd}t||y)zlVerifying the output with expected results for sigmoid correction with cutoff equal to one and gain of 5rrKrr)r)r)r)r^r^r^r^r^)rWrWrWrrrr7r7)r7rrrrrrr3)r3rrrrrrAr)rrrrr r r rJ)rrKrLrrrrPr)rrrVrXr?r%r^r()rdrgr,r-rorsrxr|rr)r7Nrr,rArrr rCrrs r%test_adjust_sigmoid_cutoff_onerGs{ IIaa * 2 26 :Exx $ $ % , , , , 1 hh H $ $UAq 1Fvx(r/c .tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |dd }t||y )znVerifying the output with expected results for sigmoid correction with cutoff equal to zero and gain of 10rrKrr)rrrrrrrr)rrrrrrrHr)rrrrrrrrrrrrrrrr)rrrrrrrr)rrrrrrrrrr3NrFrs r%test_adjust_sigmoid_cutoff_zerorJs{ IIaa * 2 26 :Exx 4 4 4 4 4 4 4 4 hh H $ $UAr 2Fvx(r/c .tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |dd}t||y)znVerifying the output with expected results for sigmoid correction with cutoff equal to half and gain of 10rrKrr)r)r)r^r^rWrWrr7)r7rrrr3rrrA)rrr r rrLrrP)rrVr?r^rdr,rorx)rErFrrrrrr)rrrrrrrHr)rrrrrrrrrIrrTr3NrFrs r%test_adjust_sigmoid_cutoff_halfrLs{ IIaa * 2 26 :Exx $ ( , . 4 4 4 4 hh H $ $UC 4Fvx(r/c 0tjdddtjjd}tjgdgdgdgdgd gd gd gd gtj }t j |ddd}t||y)zvVerifying the output with expected results for inverse sigmoid correction with cutoff equal to half and gain of 10rrKrr)rrrrrrrr)rrrrrrrr)rrrHrrrrr)rrrrrrrr)rrvrmrhrcr]rYrU)rRrrrrrIr r)rrArrr3rrr)r7rrrWrWr^r^r)rrTr3TNrFrs r%#test_adjust_inv_sigmoid_cutoff_halfrNs} IIaa * 2 26 :Exx 4 4 4 4 / , ) $ hh H $ $UCT :Fvx(r/ctjddd}tj|sJd|d<tj|sJtj|drJ|dzj tj }tj|sJtj|drJ|j tj dz}tj|sJtj|drJy) Nrg{Gz?rr)r)upper_percentilerKr?)rrLr is_low_contrastrrArr1s r%test_is_low_contrastrR/s KK4 %E  # #E ** *E"I  # #E ** *''DD D S[  *E  # #E ** *''DD D \\")) $ ,E  # #E ** *''DD DDr/ctjdt}tj|sJd|ddtj|rJy)Nrrr)r7)rr_boolr rQr1s r%test_is_low_contrast_booleanrU?sH HHV4 (E  # #E ** *E"1I''.. ..r/ exposure_funcctjdddjdjtj}t j t5||dddy#1swYyxYw)Nrrrr)rr,rrrrrr)rVrbs r%test_negative_inputrXKsY IIc3 " * *6 2 9 9"** EE z "es  A//A8cftjddddlm}|j t jddgddggd}t j|\}}gd }gd }t j||sJt j||sJt||jsJy) Ndask$dask python library is not installedrrr)r^)r)r^)chunks)rr)r^)r)r^r)) r importorskip dask.arrayr from_arrayrr r allclose isinstanceArray)da dask_array output_hist output_bins expected_bins expected_hists r%test_dask_histogramriYs 'MNrxx!Q!Q(89&IJ'11*=KMM ;;}k 22 2 ;;}k 22 2 k288 ,, ,r/c8tjddddlm}|jgdtj }t j|}|jtj k(sJt|gdt||jsJy)NrZr[rrrrr) rr]r^rrrAr rrrrarb)rcrbrs r%test_dask_rescalerkfsp 'MN HH^288H 4E  $ $U +C 99  c=1 c288 $$ $r/)yrnumpyrr numpy.testingrrrrrpackaging.versionrskimager r r skimage.colorr skimage.exposure.exposurer skimage.util.dtyperskimage._shared._warningsrskimage._shared.utilsrmark parametrizer+float32r&r.r1r5r=rBrIrMrOrrrUr[rarAint16rlrDseedcamerarorrurrrr|rrrwrrrrrrrrrrrint32rrrrrrrrskipif __version__rrrrrrrrr rrrr!r(rrr9r>rBrFrr/r2r6r:r=rArDrGrJrLrNrRrUr<r8rCrXrirkr/r%rs &"5*77277BJJ"78Q9Q --'',,,,2::rzz2::"FG>H>2::rzz2::"FG'H' (('7);<288RXXrzz"BC4.5D=.8 qt{{} 4  \ * %8 % %hns&: ;&2::rzz2::"FG;H; - 1v1c(+hR-AB& &  SzWr1g.c3Z0HI& & $    20 2::rzz2::"FG$H$0  bggrxxRZZ D33"@ 4 4 4 */ * BNNgfo- 9-0BDV/WX ?Y  ? "(( 299 299 299 %  + + *'@2::rzz2::"FG FH FK" MR4 .Y$ /#,(4%&2::rzz2::"FG'H'L)^L)^) H2::rzz2::"FG!H!),)42::rzz2::"FG!H!),),),), E / H//1H1HI  -%r/