ó  ‰\c@sðddlZddlmZddlmZddlZddlmZddlZej ƒZ de fd„ƒYZ d e fd „ƒYZeƒZd „Zd „Zd ejfd„ƒYZde fd„ƒYZde fd„ƒYZdS(iÿÿÿÿNi(t _colormixer(t _histogramsi(t img_as_ubytet GuiLockErrorcBseZd„Zd„ZRS(cCs ||_dS(N(tmsg(tselfR((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt__init__scCs|jS(N(R(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt__str__s(t__name__t __module__RR(((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyR s t WindowManagercBs_eZdZd„Zd„Zd„Zd„Zd„Zd„Zd„Z d„Z d „Z RS( sq A class to keep track of spawned windows, and make any needed callback once all the windows, are closed.cCs:g|_d|_d|_i|_t|_d|_dS(Nt((t_windowstNonet _callbackt_callback_argst_callback_kwargstFalset _gui_lockt_guikit(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRs      cCs|jstdƒ‚ndS(Ns?Must first acquire the gui lock before using this image manager(RR(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt _check_locked!s cCs&|jr"|j|j|jŽndS(N(RRR(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt_exec_callback&s cCs;|jrtd|jƒ‚nt|_t|ƒ|_dS(NskThe gui lock can only be acquired by one toolkit per session. The lock is already aquired by %s(RRRtTruetstr(Rtkit((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytacquire*s   cCsh|jƒt|ƒ|jkrXg|_d|_d|_i|_t|_ d|_n t dƒ‚dS(NR s2Only the toolkit that owns the lock may release it(( RRRR R RRRRRt RuntimeError(RR((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt_release3s       cCs|jƒ|jj|ƒdS(N(RR tappend(Rtwin((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt add_windowCs cCsb|jƒy|jj|ƒWntk r;dGHdGHn#Xt|jƒdkr^|jƒndS(Ns4Unable to find referenced window in tracked windows.s Ignoring...i(RR tremovet ValueErrortlenR(RR((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt remove_windowGs   cOs)|jƒ||_||_||_dS(N(RRRR(Rtcbtcbargstcbkwargs((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytregister_callbackRs   cCs!t|jƒdkrtStSdS(Ni(R!R RR(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyt has_windowsXs( RR t__doc__RRRRRRR"R&R'(((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyR s      cCs¦|jdkrtdƒ‚n|jd}|jd}tj||dfdtjƒ}t|ƒ}|jdks–|jdkr |jddkr |j||fƒ}||dd…dd…df<||dd…dd…df<||dd…dd…df½s t ColorMixercBs­eZdZdZdZdZeeegZd„Zd„Zd„Z d„Z d„Z d „Z d „Z d „Zd „Zd „Zd„Zd„Zd„Zd„ZRS(sÆ a class to manage mixing colors in an image. The input array must be an RGB uint8 image. The mixer maintains an original copy of the image, and uses this copy to query the pixel data for operations. It also makes a copy for sharing state across operations. That is, if you add to a channel, and multiply to same channel, the two operations are carried separately and the results averaged together. it modifies your array in place. This ensures that if you bust over a threshold, you can always come back down. The passed values to a function are always considered absolute. Thus to threshold a channel completely you can do mixer.add(RED, 255). Or to double the intensity of the blue channel: mixer.multiply(BLUE, 2.) To reverse these operations, respectively: mixer.add(RED, 0), mixer.multiply(BLUE, 1.) The majority of the backend is implemented in Cython, so it should be quite quick. iiicCs¡t|ƒtjkr$tdƒ‚n|jtjkrEtdƒ‚n|jdksg|jddkrvtdƒ‚n||_|j ƒ|_ |j ƒ|_ dS(NsImage must be a numpy arraysImage must have dtype uint8iisImage must be 3 channel MxNx3( ttypeR,tndarrayR R)R.R*R+RDtcopytorigimgRE(RRD((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRs" cCs|jS(N(RE(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytget_stateimagescCs|j|j(dS(N(RDRE(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytcommit_changesscCs |j|j(|j|j(dS(N(RNRERD(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytrevertscCs|j|j(dS(N(RERD(R((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytset_to_stateimgscCsD||jkst‚t|j|jtj||ƒ}|jƒdS(sBAdd the specified ammount to the specified channel. Parameters ---------- channel : flag the color channel to operate on RED, GREED, or BLUE ammount : integer the ammount of color to add to the channel, can be positive or negative. N(tvalid_channelstAssertionErrorR>RDRERtaddR=(Rtchanneltammounttpool((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRUs cCsD||jkst‚t|j|jtj||ƒ}|jƒdS(sFMutliply the indicated channel by the specified value. Parameters ---------- channel : flag the color channel to operate on RED, GREED, or BLUE ammount : integer the ammount of color to add to the channel, can be positive or negative. N(RSRTR>RDRERtmultiplyR=(RRVRWRX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRY0s cCs/t|j|jtj||ƒ}|jƒdS(s2Adjust the brightness off an image with an offset and factor. Parameters ---------- offset : integer The ammount to add to each channel. factor : float The factor to multiply each channel by. result = clip((pixel + offset)*factor) N(R>RDRERt brightnessR=(RtfactortoffsetRX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRZBs cCs/t|j|jtj||ƒ}|jƒdS(N(R>RDRERt sigmoid_gammaR=(RtalphatbetaRX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyR]SscCs,t|j|jtj|ƒ}|jƒdS(N(R>RDRERtgammaR=(RR`RX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyR`XscCs2t|j|jtj|||ƒ}|jƒdS(sAdjust the H, S, V channels of an image by a constant ammount. This is similar to the add() mixer function, but operates over the entire image at once. Thus all three additive values, H, S, V, must be supplied simultaneously. Parameters ---------- h_amt : float The ammount to add to the hue (-180..180) s_amt : float The ammount to add to the saturation (-1..1) v_amt : float The ammount to add to the value (-1..1) N(R>RDRERthsv_addR=(Rth_amtts_amttv_amtRX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRa]scCs2t|j|jtj|||ƒ}|jƒdS(sóAdjust the H, S, V channels of an image by a constant ammount. This is similar to the add() mixer function, but operates over the entire image at once. Thus all three additive values, H, S, V, must be supplied simultaneously. Note that since hue is in degrees, it makes no sense to multiply that channel, thus an add operation is performed on the hue. And the values given for h_amt, should be the same as for hsv_add Parameters ---------- h_amt : float The ammount to to add to the hue (-180..180) s_amt : float The ammount to multiply to the saturation (0..1) v_amt : float The ammount to multiply to the value (0..1) N(R>RDRERt hsv_multiplyR=(RRbRcRdRX((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyReqscCs+tj|||ƒ\}}}|||fS(sConvert an RGB value to HSV Parameters ---------- R : int Red value G : int Green value B : int Blue value Returns ------- out : (H, S, V) Floats The HSV values (Rt py_rgb_2_hsv(RtRtGtBtHtStV((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pytrgb_2_hsv_pixel‰scCs+tj|||ƒ\}}}|||fS(s*Convert an HSV value to RGB Parameters ---------- H : float Hue value S : float Saturation value V : float Intensity value Returns ------- out : (R, G, B) ints The RGB values (Rt py_hsv_2_rgb(RRjRkRlRgRhRi((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pythsv_2_rgb_pixelžs(RR R(tREDtGREENtBLUERSRRORPRQRRRURYRZR]R`RaReRmRo(((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyRJås&            (tnumpyR,R RRt threadingtutilRtmultiprocessingt cpu_countR?t ExceptionRtobjectR twindow_managerR5R6tThreadR9R>RJ(((s7lib/python2.7/site-packages/skimage/io/_plugins/util.pyts    I  <  (