otiai10 / ocrserver

A simple OCR API server, seriously easy to be deployed by Docker, on Heroku as well

ocrserver

Simple OCR server, as a small working sample for gosseract.

Try now here https://ocr-example.herokuapp.com/, and deploy your own now.

Deploy to Heroku

# Get the code
% git clone [email protected]:otiai10/ocrserver.git
% cd ocrserver
# Make your app
% heroku login
% heroku create
# Deploy the container
% heroku container:login
% heroku container:push web
# Enjoy it!
% heroku open

cf. heroku cli

Quick Start

Ready-Made Docker Image

% docker run -p 8080:8080 otiai10/ocrserver
# open http://localhost:8080

cf. docker

Development with Docker Image

% docker-compose up
# open http://localhost:8080

You need more languages?

% docker-compose build --build-arg LOAD_LANG=rus
% docker-compose up

cf. docker-compose

Manual Setup

If you have tesseract-ocr and library files on your machine

% go get github.com/otiai10/ocrserver/...
% PORT=8080 ocrserver
# open http://localhost:8080

cf. gosseract

Documents

• API Endpoints

ocrserver's Issues

Show test coverage

server versionを返す

want to get the version of tesseract-ocr

when i run this project on my windows computer, i got a result that be diffrent from to your site(https://ocr-example.herokuapp.com/), i want to find the reason, maybe is tesseract-ocr version or traindata

Version Up Golang to 1.7

Specify a language for OCR

related to #7

Tests and CI

optionsを設定できるようにする

docker quick start ,whilelist isn't working!

docker quick start ,whilelist isn't working!
this simple "https://ocr-example.herokuapp.com/" is well.
from docker pull image. do not working

Setting language via http.request

Hi,

I think your project is great and I like the Docker solution very much. however, I just can't get it to change the language in the header at the moment.

Would you have a tip for me how I could change this?

I already tried with Header.Add and writer.CreateFormField("languages") without success.

Thanks a lot

`file, _ := os.Open(datei)
defer file.Close()

body := new(bytes.Buffer)
writer := multipart.NewWriter(body)
part2, err := writer.CreateFormField("languages")
part, _ := writer.CreateFormFile("file", filepath.Base(file.Name()))

if err != nil {
	fmt.Printf("Error creatformfield: %s", err)
}

part2.Write([]byte("deu"))
io.Copy(part, file)
writer.Close()

r, _ := http.NewRequest("POST", "http://10.6.0.3:9080/file", body)
//r.Header.Add("languages", "deu")
//r.Header.Set("languages", "deu")
r.Header.Add("Content-Type", writer.FormDataContentType())

ImageEnhance.Sharpness

stdlib.h: No such file or directory

I have a Ubuntu Server VM as I hate Docker, the machine is clean and created with the following commands:

#Install go
rm -r /temp &&
mkdir /temp &&
cd /temp &&
wget https://dl.google.com/go/go1.13.7.linux-amd64.tar.gz &&
tar -xvf go1.13.7.linux-amd64.tar.gz &&
mv go /usr/local &&
cd / &&
rm -r /temp &&
export GOROOT=/usr/local/go &&
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH

#Install libs
#2 - Lib installation
apt-get install -y
tesseract-ocr-all
libtesseract-dev
imagemagick
libleptonica-dev
gcc

So when:
go get github.com/otiai10/ocrserver/...

The following error is thrown:

PD:

1. Tesseract does work individually as I can use the command line to interact with it
2. Go does work properly as I tested an hello world from git

設定は環境変数を優先する

Any plan to use gosseract develop branch for saving init cost？

I found that this client's init method cost a lot of time while using ocrserver. Any plan to use gosseract develop branch for saving init cost, or some suggestions for me?

Demo site is down

https://ocr-example.herokuapp.com/ currently returns this:

The OCR results on the local machine are not the same as your demo website.

I try to read the image on my local machine, but the result is bad:

But it is perfect on your demo website:

I don't know why, did you use any trained model for that?

load languages option in Dockerfile should just be tesseract-ocr-all

It would be more useful for the demonstrator docker-compose up version to just install all languages (tesseract-ocr-all) instead of tessseract-ocr-jpn. If anything, it should be included in the readme how to change the Dockerfile to install all languages.

No need to use toml

it's enough using JSON instead.

pattern

server does not serve js/index.js

missing assets folder, the example page does not work

also is it possible to expose the language to the ui?
thanks!

failed to push image to heroku registry

% heroku container:push web
error parsing HTTP 400 response body: unexpected end of JSON input: ""

API_KEY, and other env variables

fail to run main.go

Hello

i get the following error when running the code:

github.com/otiai10/gosseract/v2

cc1.exe: sorry, unimplemented: 64-bit mode not compiled in

#reprdocuceable every time

go env

set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\BlackPearl\AppData\Local\go-build
set GOENV=C:\Users\BlackPearl\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\BlackPearl\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=c:\go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=c:\go\pkg\tool\windows_amd64
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\BLACKP~1\AppData\Local\Temp\go-build118439850=/tmp/go-build -gno-record-gcc-switches

go version

go version go1.15.6 windows/amd64

tesseract --version

tesseract v4.0.0.20190314
leptonica-1.78.0
libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.3) : libpng 1.6.34 : libtiff 4.0.9 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.2.0
Found AVX2
Found AVX
Found SSE

ImageEnhance.Contrast

New logo for OCRserver

I wanted to contribute to OCRserver I designed a logo for OCRserver. If you like it, I'll send you the all files.

CORS not working

I deployed this container to Heroku and sending POST requests via curl works great! However, I have trouble getting POST requests via a React web app due to CORS. What is the best way to enable CORS on this project, since it implements the request endpoints using marmoset? Thank you!