Linking Error for Tesseract version 3.04 building using opencl

[Supriya Das]

Hello All,

     I am trying to build tesseract version 3.04 in opencl version. I have linked intel opencl sdk. and link libtiff library but when i am trying to build it getting some linking error.

    errors are as follow.

    unresolved external symbol _TIFFCleanup referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadStreamTiffCl(struct _iobuf *,int)" (?pixReadStreamTiffCl@OpenclDevice@@SAPAUPix@@PAU_iobuf@@H@Z)

unresolved external symbol _TIFFGetField referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadFromTiffStreamCl(struct tiff *)" (?pixReadFromTiffStreamCl@OpenclDevice@@SAPAUPix@@PAUtiff@@@Z)

unresolved external symbol _TIFFGetFieldDefaulted referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadFromTiffStreamCl(struct tiff *)" (?pixReadFromTiffStreamCl@OpenclDevice@@SAPAUPix@@PAUtiff@@@Z)

unresolved external symbol _TIFFReadDirectory referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadStreamTiffCl(struct _iobuf *,int)" (?pixReadStreamTiffCl@OpenclDevice@@SAPAUPix@@PAU_iobuf@@H@Z)

unresolved external symbol _TIFFScanlineSize referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadFromTiffStreamCl(struct tiff *)" (?pixReadFromTiffStreamCl@OpenclDevice@@SAPAUPix@@PAUtiff@@@Z)

unresolved external symbol _TIFFReadScanline referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadFromTiffStreamCl(struct tiff *)" (?pixReadFromTiffStreamCl@OpenclDevice@@SAPAUPix@@PAUtiff@@@Z)

unresolved external symbol _TIFFReadRGBAImageOriented referenced in function "public: static struct Pix * __cdecl OpenclDevice::pixReadFromTiffStreamCl(struct tiff *)" (?pixReadFromTiffStreamCl@OpenclDevice@@SAPAUPix@@PAUtiff@@@Z)

unresolved external symbol _TIFFFdOpen referenced in function "public: static struct tiff * __cdecl OpenclDevice::fopenTiffCl(struct _iobuf *,char const *)" (?fopenTiffCl@OpenclDevice@@SAPAUtiff@@PAU_iobuf@@PBD@Z)

unresolved external symbol _TIFFClientOpen referenced in function "struct tiff * __cdecl fopenTiffMemstream(char const *,char const *,unsigned char * *,unsigned int *)" (?fopenTiffMemstream@@YAPAUtiff@@PBD0PAPAEPAI@

Environment:

visual studio 2012

os: Windows 8

opencl : intel sdk.

Thanks in advance.

[Zdenko Podobný]

Seems like you are missing tiff library in linking...

Anyway OpenCl is experimental feature and there are several issues reported (see issue tracker).

Zdenko

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[Supriya Das]

Thanks for your reply. Can you please help me out from where i can get tiff library which tesseract using. 

[Zdenko Podobný]

You should use the same library as in leptonica.

Zdenko

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