related to #28 , #27

../../vendor/github.com/otiai10/gosseract/goss.go:3:8: no buildable Go source files in /go/src/vendor/github.com/otiai10/gosseract/tesseract

go build:
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build app/server

Tesseract actually provides a c library so you don't need to use tesseract running as a service.
Do you know how to do it?

// Generates tmp filepath
func genTmpFilePath() string {
    id, _ := uuid.NewV4()
    return TMPDIR + "/" + id.String()
}

ioutil.TempFile provides this

TempFile creates a new temporary file in the directory dir with a name beginning with prefix, opens the file for reading and writing, and returns the resulting *os.File. If dir is the empty string, TempFile uses the default directory for temporary files (see os.TempDir). Multiple programs calling TempFile simultaneously will not choose the same file. The caller can use f.Name() to find the pathname of the file. It is the caller's responsibility to remove the file when no longer needed.

github.com/otiai10/gosseract/tesseract/tess.cpp:1:31: fatal error: tesseract/baseapi.h: No such file or directory (Centos 7)

As is (almost vacant)

package gosseract

type tesseract0303 struct {
    version string
}

func (t tesseract0303) Version() string {
    return t.version
}
func (t tesseract0303) Execute(args []string) (res string, e error) {
    res = "tesseract0303"
    return
}

I'd like to use tesseract with go on Windows 7.

During the installation process, as stated in the docs I execute

c:\go\src\proj>go get github.com/otiai10/gosseract
# github.com/otiai10/gosseract/tesseract
C:\go\src\github.com\otiai10\gosseract\tesseract\tess.cpp:1:31: fatal error: tesseract/baseapi.h: No such file or directory
 #include <tesseract/baseapi.h>
                               ^
compilation terminated.

And by searching the file system for the header file baseapi.h, I cannot find it.

How can I solve this? Thank you

Is there a way to edit the PSM argument that gets passed into Tesseract?

Please translate all comments and issues to English so other non-speaking (I do not even know which languages that is 👽) developers can help with the TODO.

https://github.com/otiai10/gosseract/blob/master/tesseract.go#L17

exec.Lookpath

• #21 (comment)
• http://otiai10.hatenablog.com/entry/2014/06/24/082448

[root@localhost gosseract]# go test
/tmp/go-build841552903/gosseract/_test/gosseract.test: error while loading shared libraries: liblept.so.5: cannot open shared object file: No such file or directory
exit status 127
FAIL gosseract 0.001s
[root@localhost gosseract]# ls /usr/local/lib/
codecs/ liblept.so.5.0.1 libtesseract.so.4
liblept.a libpython3.6m.a libtesseract.so.4.0.0
liblept.la libtesseract.a pkgconfig/
liblept.so libtesseract.la python3.6/
liblept.so.5 libtesseract.so
[root@localhost gosseract]# ls /usr/local/lib/libtesseract.
libtesseract.a libtesseract.so libtesseract.so.4.0.0
libtesseract.la libtesseract.so.4
[root@localhost gosseract]# export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
[root@localhost gosseract]# go test
Info in bmfCreate: Generating pixa of bitmap fonts from string
Warning. Invalid resolution 0 dpi. Using 70 instead.
Info in bmfCreate: Generating pixa of bitmap fonts from string
Warning. Invalid resolution 0 dpi. Using 70 instead.
Info in bmfCreate: Generating pixa of bitmap fonts from string
Warning. Invalid resolution 0 dpi. Using 70 instead.
all_test.go at line 37
Expected to be 42
But actual 03:41:26
--- FAIL: Test_Must_WithDigest (0.42s)
all_test.go at line 42
Expected to be <nil>
But actual No tesseract version is found, supporting 3.02~, 3.03~, 3.04~ and 3.05~
--- FAIL: Test_NewClient (0.01s)
--- FAIL: TestClient_Src (0.01s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x520c7d]

goroutine 13 [running]:
testing.tRunner.func1(0xc420069040)
/usr/local/go/src/testing/testing.go:622 +0x29d
panic(0x54a340, 0x8119c0)
/usr/local/go/src/runtime/panic.go:489 +0x2cf
gosseract.TestClient_Src(0xc420069040)
/data/software/src/gosseract/all_test.go:55 +0x3d
testing.tRunner(0xc420069040, 0x57e468)
/usr/local/go/src/testing/testing.go:657 +0x96
created by testing.(*T).Run
/usr/local/go/src/testing/testing.go:697 +0x2ca
exit status 2
FAIL gosseract 0.707s

I have installed everything and after build the go file with readme example, i have an error:

ld: warning: ld: warning: ignoring file /usr/local/lib/liblept.dylib, file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib/liblept.dylibignoring file /usr/local/lib/libtesseract.dylib, file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib/libtesseract.dylib

What can be happen?

I cannot build with go build nor I can go get github.com/otiai10/gosseract ,
I get error:
go build github.com/otiai10/gosseract/tesseract: C:\go\pkg\tool\windows_386\cgo.exe: exit status 2

I installed CGO, tried restarting my pc, nothing works.

package gosseract_test,
NOT using gospel

Related #13

I am puzzled how to set the -l parameter?

Add runtime test for #77

• no idea, priority low

tesseract/baseapi.h: No such file or directory

% go test ./...
# github.com/otiai10/gosseract/tesseract
tesseract/tess.cpp:1:31: fatal error: tesseract/baseapi.h: No such file or directory
compilation terminated.
FAIL    github.com/otiai10/gosseract [build failed]

https://travis-ci.org/otiai10/gosseract/builds/89569700

tip

You can use any tagged version of Go or use tip to get the latest version.

http://docs.travis-ci.com/user/languages/go/

All go version management is handled by gimme.

https://github.com/travis-ci/gimme

My system is windows10 64 bit, my gcc use https://github.com/go-vgo/Mingw,
At first,error is : tesseract/baseapi.h' file not found ,
Then I went to download class libraries :

1. tesseract-3.02.02-win32-lib-include-dirs.zip download url https://sourceforge.net/projects/tesseract-ocr-alt/files/
2. leptonica-1.68-win32-lib-include-dirs.zip download url http://www.leptonica.com/download.html
   And then put this in "Mingw include " and "Mingw lib " directory.

Above errors disappear.
but And there's a new mistake.
d:/git/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -llept
d:/git/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -ltesseract
collect2.exe: error: ld returned 1 exit status

Spent 2 days, and now do not know how to do, and hope to be resolved, thank you!

such as

Servant
    - cmdManager
    - fileManager

go version go1.9.1 linux/amd64

# github.com/otiai10/gosseract/tesseract
In file included from /usr/include/tesseract/ltrresultiterator.h:26:0,
                 from /usr/include/tesseract/resultiterator.h:26,
                 from /usr/include/tesseract/baseapi.h:31,
                 from tess.cpp:1:
/usr/include/tesseract/unichar.h:164:10: ошибка: «string» does not name a type; did you mean «stdin»?
   static string UTF32ToUTF8(const std::vector<char32>& str32);
          ^~~~~~
          stdin

I tried to run the first test, but it failed with the following errors:

[wigywizzle@wigywizzle gosseract]$ go test ./...
Error opening data file /usr/share/tessdata/eng.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language 'eng'
Tesseract couldn't load any languages!
Could not initialize tesseract.
FAIL    github.com/otiai10/gosseract    0.006s
?       github.com/otiai10/gosseract/tesseract  [no test files]
Error opening data file /usr/share/tessdata/eng.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language 'eng'
Tesseract couldn't load any languages!
Could not initialize tesseract.
FAIL    github.com/otiai10/gosseract/tesseract/test     0.006s

should be automated test

when i use the following code to ocr a jpeg format pic.

img_url := "http://cityjw.dlut.edu.cn:7001/ACTIONVALIDATERANDOMPICTURE.APPPROCESS"
resp, err := client.Get(img_url)
if err != nil {
// handle error
}
defer resp.Body.Close()
OcrClient, _ := gosseract.NewClient()
img, _ := jpeg.Decode(resp.Body)
out, _ := OcrClient.Image(img).Out()
fmt.Println(out)

and then i got some error.

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x43926a]

goroutine 1 [running]:
runtime.panic(0x664a20, 0x965b48)
/usr/lib/go/src/pkg/runtime/panic.c:266 +0xb6
github.com/otiai10/gosseract.(*Client).Image(0x0, 0x7f008865e7a0, 0xc210059480, 0x0)
/home/halfcrazy/gocode/src/github.com/otiai10/gosseract/client.go:58 +0x13a
main.main()
/home/halfcrazy/gocode/src/school_helper/main.go:29 +0x204

https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3

I want to install package on my mac. but i get a error like this. I checked this file in project i cannot find. I think it is missing.

go get github.com/otiai10/gosseract
# github.com/otiai10/gosseract/tesseract
../../otiai10/gosseract/tesseract/tess.cpp:5:10: fatal error: 'tesseract/baseapi.h' file not found

Hi,

I was reading through the Tesseract docs here on improving the OCR output quality. It mentions that setting the tessedit_write_images config variable allows a user to view the input file after initial processing by Tesseract.

Would it be possible to add this feature to the wrapper? It seems that a combination of api->SetVariable("tessedit_write_images", writeimages); and api->GetThresholdedImage() in tess.cpp would allow saving the .tif file. I attempted this in a branch but I don't have much C++ experience and it didn't seem to work...

Thank you

go get github.com/otiai10/gosseract

/tmp/go-build043179523/github.com/otiai10/gosseract/tesseract/_obj/wrapper.cgo2.o: In function `_cgo_f34bd392845b_Cfunc_simple':
/usr/share/go/src/pkg/github.com/otiai10/gosseract/tesseract/wrapper.go:35: undefined reference to `simple'
collect2: ld returned 1 exit status

The build failed during tests because of this error too.

is there a way to set the language eg, eng+heb ?

https://code.google.com/p/tesseract-ocr/wiki/APIExample

related to #10 (comment)

Should add Digest().
I could implement it if you want.

• list possible variable names

when i use `gox -osarch="darwin/amd64" to build; it shows:

1 errors occurred:
--> darwin/amd64 error: exit status 1
Stderr: ../vendor/github.com/otiai10/gosseract/goss.go:3:8: no buildable Go source files in /home/viggo/Documents/GoPath/src/vend
or/github.com/otiai10/gosseract/tesseract

but it's ok when i use gox -osarch="linux/amd64"

And my system is debian 8

Is it possible to set the languages like this instead of having to use .Must()?

client, _ := gosseract.NewClient()
client.Languages("eng+heb")