iOS open cv

大體有個思路

1. 捕捉銀行卡圖像，截取到字符區域

2. 最捕捉到的圖像進行處理，去噪比，二值化，

3. 將銀行卡號碼區域進行切割劃分，然後對比字符

opencv 安裝失敗，直接下載拖進 xcode 的話，會報以下錯誤

這裡是 詳細解決鏈接地址

Undefined symbols for architecture x86_64:
 "_jpeg_free_large", referenced from:
   _free_pool in opencv2(jmemmgr.o)
 "_jpeg_free_small", referenced from:
   _free_pool in opencv2(jmemmgr.o)
   _self_destruct in opencv2(jmemmgr.o)
 "_jpeg_get_large", referenced from:
   _alloc_large in opencv2(jmemmgr.o)
   _alloc_barray in opencv2(jmemmgr.o)
 "_jpeg_get_small", referenced from:
   _jinit_memory_mgr in opencv2(jmemmgr.o)
   _alloc_small in opencv2(jmemmgr.o)
 "_jpeg_mem_available", referenced from:
   _realize_virt_arrays in opencv2(jmemmgr.o)
 "_jpeg_mem_init", referenced from:
   _jinit_memory_mgr in opencv2(jmemmgr.o)
 "_jpeg_mem_term", referenced from:
   _jinit_memory_mgr in opencv2(jmemmgr.o)
   _self_destruct in opencv2(jmemmgr.o)
 "_jpeg_open_backing_store", referenced from:
   _realize_virt_arrays in opencv2(jmemmgr.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

解決方法：

1.下載安裝 libjpeg ,將

/opt/libjpeg-turbo/lib/libjpeg.a 

拷貝到項目中，然後添加幾個 framework : CoreVideo.framework, AssetsLibrary.framework, CoreMedia.framework 。

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