海康工业相机：MV-CE100-30GC摄像头的调用及图片保存 - python实现

一、官方接口中找到Samples文件夹中的Python目录

1. 找到GrabImage文件夹下的GrabImage.py

2.修改work_thread()函数：

Linux下：

def work_thread(cam=0, data_buf=0, nDataSize=0): stFrameInfo = MV_FRAME_OUT_INFO_EX() memset(byref(stFrameInfo), 0, sizeof(stFrameInfo)) while True: ret = cam.MV_CC_GetOneFrameTimeout(byref(data_buf), nDataSize, stFrameInfo, 1000) if ret == 0: print("get one frame: Width[%d], Height[%d], PixelType[0x%x], nFrameNum[%d]" % ( stFrameInfo.nWidth, stFrameInfo.nHeight, stFrameInfo.enPixelType, stFrameInfo.nFrameNum)) stConvertParam = MV_SAVE_IMAGE_PARAM_EX() stConvertParam.nWidth = stFrameInfo.nWidth stConvertParam.nHeight = stFrameInfo.nHeight stConvertParam.pData = data_buf stConvertParam.nDataLen = stFrameInfo.nFrameLen stConvertParam.enPixelType = stFrameInfo.enPixelType file_path = "save.bmp" stConvertParam.enImageType = MV_Image_Bmp bmpsize = stFrameInfo.nWidth * stFrameInfo.nHeight * 3 + 54 stConvertParam.nBufferSize = bmpsize bmp_buf = (c_ubyte * bmpsize)() stConvertParam.pImageBuffer = bmp_buf ret = cam.MV_CC_SaveImageEx2(stConvertParam) if ret != 0: print("save file executed failed0:! ret[0x%x]" % ret) del data_buf sys.exit() # print(stop - start) file_open = open(file_path.encode('ascii'), 'wb+') try: img_buff = (c_ubyte * stConvertParam.nDataLen)() memmove(byref(img_buff), stConvertParam.pImageBuffer, stConvertParam.nDataLen) file_open.write(img_buff) except Exception as e: raise Exception("save file executed failed1::%s" % e) finally: file_open.close() else: print("no data[0x%x]" % ret) if g_bExit == True: break 12345678910111213141516171819202122232425262728293031323334353637383940414243

windows下：

def work_thread(cam=0, data_buf=0, nDataSize=0): stFrameInfo = MV_FRAME_OUT_INFO_EX() memset(byref(stFrameInfo), 0, sizeof(stFrameInfo)) while True: ret = cam.MV_CC_GetOneFrameTimeout(byref(data_buf), nDataSize, stFrameInfo, 1000) if ret == 0: print("get one frame: Width[%d], Height[%d], PixelType[0x%x], nFrameNum[%d]" % ( stFrameInfo.nWidth, stFrameInfo.nHeight, stFrameInfo.enPixelType, stFrameInfo.nFrameNum)) stConvertParam = MV_SAVE_IMAGE_PARAM_EX() stConvertParam.nWidth = stFrameInfo.nWidth stConvertParam.nHeight = stFrameInfo.nHeight stConvertParam.pData = data_buf stConvertParam.nDataLen = stFrameInfo.nFrameLen stConvertParam.enPixelType = stFrameInfo.enPixelType file_path = "save.bmp" stConvertParam.enImageType = MV_Image_Bmp bmpsize = stFrameInfo.nWidth * stFrameInfo.nHeight * 3 + 54 stConvertParam.nBufferSize = bmpsize bmp_buf = (c_ubyte * bmpsize)() stConvertParam.pImageBuffer = bmp_buf ret = cam.MV_CC_SaveImageEx2(stConvertParam) if ret != 0: print("save file executed failed0:! ret[0x%x]" % ret) del data_buf sys.exit() # print(stop - start) file_open = open(file_path.encode('ascii'), 'wb+') try: img_buff = (c_ubyte * stConvertParam.nDataLen)() cdll.msvcrt.memcpy(byref(img_buff), stConvertParam.pImageBuffer, stConvertParam.nDataLen) file_open.write(img_buff, ) except Exception as e: raise Exception("save file executed failed1::%s" % e) finally: file_open.close() else: print("no data[0x%x]" % ret) if g_bExit == True: break