+ اj$:Rt^RIt^RItRtRRltRtRRltR#)z] KMeans algorithm for image color palette extraction. Manual implementation without sklearn. Nc0^RIHpVPV4PR4pVP RVP P 4\P!V\PR7PR^4pV# \dR#i;i)z Load image and return pixel array as (N, 3) float32 numpy array. Args: image_path: absolute path to the image file Returns: np.ndarray of shape (N, 3) with RGB values in [0, 255], or None on error )ImageRGBdtypeN)dr) PILropenconvert thumbnail ResamplingLANCZOSnparrayfloat32reshape Exception) image_pathrimgpixelss& O/Users/jokubas/Desktop/KTU/big_data/engineering/processing/algorithms/kmeans.pyload_image_pixelsr sujj$,,U3 j%"2"2":":;#RZZ088Q? sBB BBc 2\V4pV^8XdO\P!V^3\PR7\P!V\PR73#\ W4p\ P!V4p.pVP^V^, 4pVPW,P44\^V4EF_p \P!V\PR7p VR\PR3,V \PRR3,, p \P!V ^,^R7p \P !V ^R7p \\P!V 44pV^8XdVP^V^, 4pM`W, p\P !V4pVP 4p\#\P$!VV44p\ W^, 4pVPW,P44EKb \P!V\PR7p\P!V\PR7p\V4EFpVR\PR3,V\PRR3,, p \P!V ^,^R7p \P&!V ^R7P)\P4p\P*!V4p\V4FjpVV8Hp\P,!V4'd%\P.!VV,^R7VV&KHWP^V^, 4,VV&Kl \\P0!\P2!\P!VV, ^,^R7444pTpTpVV8gEKVV3# VV3#)ab Manual KMeans implementation. Args: pixels: np.ndarray of shape (N, 3) k: number of clusters max_iter: maximum iterations tol: convergence tolerance (centroid shift) seed: random seed Returns: (centroids, assignments) - centroids: np.ndarray of shape (k, 3) - assignments: np.ndarray of shape (N,) with cluster indices r:NNNaxis)lenrzerosrint32minrandomRandomrandintappendcopyrangernewaxissumfloatcumsumint searchsortedargminastype zeros_likeanymeanmaxsqrt)rkmax_itertolseednrng centroids first_idx_ centroid_arrdiffssq_dists min_sq_diststotalidxprobscumprobsr assignments iterationnew_assignments new_centroidsjmaskshifts&&&&& rkmeansrLs F AAvxxAbjj1288ARXX3NNN A A -- CI Aq1u%I V&++-. 1a[xx < q"**a'(< Aq8H+II66%1*1-vvhQ/ bff\*+ A:++aQ'C (Eyy'H Abooh23Ccq5/C))+,'*"**5I((1BHH-K8_ q"**a'(9RZZA5E+FF66%1*1-))H15<>+;*AJ +BQ/&--/%7N   ,,rMc\V4pVe\V4^8XdR#\W!R7wr4\W4V4pV# \dR#i;i)z Full pipeline: load image -> run KMeans -> return feature vector. Args: image_path: absolute path to the image file k: number of color clusters Returns: np.ndarray of length k*3, or None if error N)r3)rrrLrZr)rr3rr9rErYs&& rcompute_image_featurer\sWz *F ~V)!'!4 -iaH s? A A) g?*)r])__doc__numpyrr rrLrZr\rMrrcs( *M"`->rM