\c@sddlZddlZddlZddlmZddlmZddlmZddlm Z ddl m Z ddl m Z ddlmZdd lmZmZmZd Zd Zejjd ejZejeZejed dZdZdZdZdZ dZ!ej"ddd dgfdd dgfdAddgfgdZ#ej"ddddgfdddgfdBddgfgd Z$d!Z%dDZ&dFZ'dHZ(dJZ)d&Z*d'Z+d(Z,d)Z-d*Z.d+Z/d,Z0d-Z1d.Z2d/Z3d0Z4d1Z5d2Z6d3Z7d4Z8d5Z9d6Z:d7Z;d8Z<d9Z=d:Z>d;Z?d<Z@d=ZAd>ZBd?ZCd@ZDdS(KiN(tdata(texposure(tintensity_range(trgb2gray(t dtype_range(texpected_warnings(ttesting(tassert_array_equaltassert_array_almost_equaltassert_almost_equalcCstjddgdtj}tj|\}}t|tjdd|ddksbt|ddksxtt|dd!ddS(Niitdtypeiii(tnptarraytint8Rt histogramRtarangetAssertionError(timt frequenciest bin_centers((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_negative_overflows cCstjddgdtj}tj|\}}t|tjdd|ddksbt|ddksxtt|dd!ddS(NiiR ii(R R R RRRRR(RRR((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_all_negative_images ig@idcCs;tjt}tjtdd}tjj||dS(s)Check integer bins used for uint8 images.tnbinsiN(Rt equalize_histt test_img_intR Rtassert_allclose(timg_eq0timg_eq1((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_equalize_uint8_approx2scCsWtdgtjt}WdQXtj|}tj|\}}t|dS(Nsprecision loss(Rtskimaget img_as_ubytettest_imgRRtcumulative_distributiontcheck_cdf_slope(timgtimg_eqtcdft bin_edges((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_equalize_ubyte9s cCsAtjt}tj|}tj|\}}t|dS(N(Rt img_as_floatRRRR R!(R"R#R$R%((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_equalize_floatBscCstjt}tjtj}d|ddddfd?d@dAdBdCggdDtj}tj|dE}t||dFS(Hs\Verifying the output with expected results for gamma correction with gamma equal to halfiiiiii-i7i?iGiNiTiZi_idiiinisiwi{iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiR g?N(ii(R RR7treshapeR RRR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_gamma_less_one1s$-cCs7tjdddtjjdA}tjddddddddgddd d d d d dgddddddddgddddddddgdd d!d"d#d$d%d&gd'd(d)d*d+d,d-d.gd/d0d1d2d3d4d5d6gd7d8d9d:d;d<d=d>ggd?tj}tj|d}t||d@S(Bs[Verifying the output with expected results for gamma correction with gamma equal to twoiiiiiiiiiii i i iiiiiiiii!i$i'i*i-i1i4i8i<i@iDiHiLiQiUiZi_idiiinitiyiiiiiiiiiiiiiiiiiiiR N(ii(R RR7RR RRR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_gamma_greater_oneCs$-cCsNtjdddtjjd}tjttj|dWdQXdS(Niiiii(ii( R RR7RRtraisest ValueErrorRR(R5((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_gamma_neggativeUs$cCs7tjdddtjjdG}tjdddddd d d gd d ddddddgddddddddgddddd d!d"d#gd$d%d&d'd(d)d*d+gd,d-d.d/d0d1d2d3gd4d5d6d7d8d9d:d;gd<d=d>d?d@dAdBdCggdDtj}tj|dE}t||dFS(Hs|Verifying the output with expected results for logarithmic correction with multiplier constant multiplier equal to unityiiiiii iiii!i&i+i0i5i:i?iDiIiMiRiVi[i_idihimiqiuiyi}iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiR iN(ii(R RR7RR Rt adjust_logR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_log^s$-cCs:tjdddtjjdF}tjddddddd d gd d d dddddgddddddddgdddddd d!d"gd#d$d%d&d'd(d)d*gd+d,d-d.d/d0d1d2gd3d4d5d6d7d8d9d:gd;d<d=d>d?d@dAdBggdCtj}tj|dDt}t||dES(GsVerifying the output with expected results for inverse logarithmic correction with multiplier constant multiplier equal to unityiiiiiii iiiiiii i#i&i)i-i0i3i7i:i=iAiDiHiLiOiSiWiZi^ibifijinirivizi~iiiiiiiiiiiiiiiiiiiiiiiiiiR iN(ii( R RR7RR RRR?R(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_inv_logps$-cCs:tjdddtjjd6}tjddddddddgddddddddgdd d d d dd d gd d ddddddgddddddddgddddd d!d"d#gd$d%d&d'd(d)d*d+gd,d-d.d/d0d1d2d3ggd4tj}tj|dd}t||d5S(7slVerifying the output with expected results for sigmoid correction with cutoff equal to one and gain of 5iiiiiiiiiii i i i i iiiiiiiiiiii i"i$i'i)i,i/i2i6i9i=i@iDiHiLiPiUiYi^icihiliqivi{R N(ii(R RR7RR Rtadjust_sigmoidR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_sigmoid_cutoff_ones$-cCs:tjdddtjjd&}tjddddd d d d gd dddddddgddddddddgdddddd d d!gd!d!d!d!d"d"d"d"gd"d"d"d"d"d"d"d"gd"d"d"d"d"d"d"d"gd"d"d"d"d"d"d"d"ggd#tj}tj|dd$}t||d%S('snVerifying the output with expected results for sigmoid correction with cutoff equal to zero and gain of 10iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiR i N(ii(R RR7RR RRR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_sigmoid_cutoff_zeros$-cCs:tjdddtjjd@}tjddddddddgdd d d d d ddgddddddddgddddddddgd d!d"d#d$d%d&d'gd(d)d*d+d,d-d.d/gd0d1d2d3d4d5d6d7gd8d9d9d:d:d;d;d<ggd=tj}tj|d>d }t||d?S(AsnVerifying the output with expected results for sigmoid correction with cutoff equal to half and gain of 10iiiiiiiiiii i i iiiiiii"i'i,i2i9i@iHiPiYiciliviiiiiiiiiiiiiiiiiiiiiiiiiiiiiR g?N(ii(R RR7RR RRR(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyttest_adjust_sigmoid_cutoff_halfs$-cCs=tjdddtjjd?}tjdddddddd gd d d d d dddgddddddddgdddddddd gd!d"d#d$d%d&d'd(gd)d*d+d,d-d.d/d0gd1d2d3d4d5dd6d7gd8ddd9d9d:d:d;ggd<tj}tj|d=d5t}t||d>S(@svVerifying the output with expected results for inverse sigmoid correction with cutoff equal to half and gain of 10iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii~itiji`iWiNiFi>i7i1i+i%i!iiiiiii i iiiiiiR g?N(ii( R RR7RR RRR?R(R5R9R((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyt#test_adjust_inv_sigmoid_cutoff_halfs$-cCsQtjdddjdjtj}tjttj |WdQXdS(Niiii(ii( R RRtastypetdoubleRRRRR(R5((sClib/python2.7/site-packages/skimage/exposure/tests/test_exposure.pyt test_negatives*cCstjddd}tj|s*td|dsz        ! !