怎么在python中利用numpy 顯示圖像陣列?相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
python的五大特點:1.簡單易學,開發程序時,專注的是解決問題,而不是搞明白語言本身。2.面向對象,與其他主要的語言如C++和Java相比, Python以一種非常強大又簡單的方式實現面向對象編程。3.可移植性,Python程序無需修改就可以在各種平臺上運行。4.解釋性,Python語言寫的程序不需要編譯成二進制代碼,可以直接從源代碼運行程序。5.開源,Python是 FLOSS(自由/開放源碼軟件)之一。
1、輸入圖像列表 img_list
2、show_type : 最終的顯示方式,輸入為行數列數?。ɡ纭how_type=22 ,則最終顯示圖片為兩行兩列)
3、basic_shape, 圖片resize的尺寸。
def image_show( img_list, show_type, basic_size=[300,500]): ''' img_list contains the images that need to be stitched, the show_typ contains the final shape of the stitched one, ie, 12 for 1 row 2 cols. basic_size : all input image need to be reshaped first. ''' # reshap row and col number. n_row, n_col = basic_size #print n_row,n_col # num of pixels need to be filled vertically and horizontally. h_filling = 10 v_filling = 10 # image resize. resize_list=[] for i in img_list: temp_img = cv2.resize( i, ( n_col, n_row ), interpolation = cv2. INTER_CUBIC ) resize_list.append( temp_img ) # resolve the final stitched image 's shape. n_row_img, n_col_img = show_type/10, show_type%10 #print n_row_img, n_col_img # the blank_img and the image need to be filled should be defined firstly. blank_img= np.ones([n_row,n_col])*255 blank_img= np.array( blank_img, np.uint8 ) v_img= np.array( np.ones([n_row,v_filling])*255, np.uint8) h_img= np.array( np.ones ([ h_filling, n_col_img*n_col+(n_col_img-1)*h_filling])*255, np.uint8) # images in the image list should be dispatched into different sub-list # in each sub list the images will be connected horizontally. recombination_list=[] temp_list=[] n_list= len(resize_list) for index, i in enumerate ( xrange (n_list)): if index!= 0 and index % n_col_img==0 : recombination_list.append(temp_list) temp_list = [] if len(resize_list)> n_col_img: pass else: recombination_list.append(resize_list) break temp_list.append( resize_list.pop(0)) if n_list== n_col_img: recombination_list.append(temp_list) #print len(temp_list) #print temp_list # stack the images horizontally. h_temp=[] for i in recombination_list: #print len(i) if len(i)==n_col_img: temp_new_i=[ [j,v_img] if index+1 != len(i) else j for index, j in enumerate (i) ] new_i=[ j for i in temp_new_i[:-1] for j in i ] new_i.append( temp_new_i[-1]) h_temp.append(np.hstack(new_i)) else: add_n= n_col_img - len(i) for k in range(add_n): i.append(blank_img) temp_new_i=[ [j,v_img] if index+1 != len(i) else j for index, j in enumerate (i) ] new_i=[ j for i in temp_new_i[:-1] for j in i ] new_i.append( temp_new_i[-1]) h_temp.append(np.hstack(new_i)) #print len(h_temp) #print h_temp temp_full_img= [ [j, h_img ] if index+1 != len(h_temp) else j for index, j in enumerate(h_temp) ] if len(temp_full_img) > 2: full_img= [ j for i in temp_full_img[:-1] for j in i ] full_img.append(temp_full_img[-1]) else: full_img= [ j for i in temp_full_img for j in i ] #full_img.append(temp_full_img[-1]) if len(full_img)>1: return np.vstack( full_img) else: return full_img
看完上述內容,你們掌握怎么在python中利用numpy 顯示圖像陣列的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
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