perspective_corrector

Perspective correction of documents with OpenCV.

Listens per default at port 5000

Arguments

-port [portnumber]

Provides

[GET/POST] /api/status
[POST] /api/image/transform

Usage

Spring Rest

final byte[] payload = readFile();

RestTemplate upload = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.set("Content-Type", "multipart/form-data");
headers.set("Accept", "*/*");

MultiValueMap<String, String> fileMap = new LinkedMultiValueMap<>();
ContentDisposition contentDisposition = ContentDisposition.builder("form-data")
    .name("key")
    .filename("perspective.png")
    .build();

fileMap.add("Content-Disposition", contentDisposition.toString());
fileMap.add("Content-Type", "image/jpeg");

HttpEntity<byte[]> entity = new HttpEntity<>(payload, fileMap);
MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
body.add("file", entity);
HttpEntity<MultiValueMap<String, Object>> requestData = new HttpEntity<>(body, headers);

ResponseEntity<byte[]> responseEntity = upload.postForEntity("http://127.0.0.1:5000/api/image/transform", requestData, byte[].class);