使用opencv裁剪图片
原始图片：
import osimport cv2 as cv#自然写法'''i=1000000im_path=r'F:\cityperson\citypersons2voc-master\data\leftImg8bit\train\\'filelist = os.listdir(im_path)for file in filelist: file_path=os.path.join(im_path,file)filenames=os.listdir(file_path)for imagename in filenames:image_path=os.path.join(file_path,imagename)im=cv.imread(image_path) im=im[256:1024,0:1280] baocun=r'F:\cityperson\citypersons2voc-master\data\leftImg8bit\train_1' save_path=os.path.join(baocun,str(i)+'.jpg') cv.imwrite(save_path,im) i=i+1'''#定义函数写法<太不正规了，太菜了>def clip_image(filelist,i,im_path): for file in filelist:file_path=os.path.join(im_path,file)filenames=os.listdir(file_path) for imagename in filenames:image_path=os.path.join(file_path,imagename) im=cv.imread(image_path)im=im[256:1024,0:1280]#高、宽baocun=r'F:\cityperson\citypersons2voc-master\data\leftImg8bit\train_11'save_path=os.path.join(baocun,str(i)+'.jpg') cv.imwrite(save_path,im) i=i+1def main(): i=1000000 im_path=r'F:\cityperson\citypersons2voc-master\data\leftImg8bit\train\\' filelist = os.listdir(im_path) clip_image(filelist,i,im_path)if __name__ == "__main__":main() print ('成功')
裁剪后图片：按图片坐标裁剪得到左下角区域，注意图片左上角为（0，0）
