From 0436f6a7caac71fc119c6e70a8b0cd1a8fe1f9d7 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Fri, 16 Nov 2018 19:33:59 +0000
Subject: [PATCH] Added template and created some return value for ocr.
---
sid_process.py | 61 ++++++++++++++++++++++++------
1 files changed, 48 insertions(+), 13 deletions(-)
diff --git a/sid_process.py b/sid_process.py
index 210cfe7..67c689a 100644
--- a/sid_process.py
+++ b/sid_process.py
@@ -1,6 +1,9 @@
import cv2
import numpy as np
-from skimage import morphology,img_as_ubyte
+from skimage import morphology, img_as_ubyte
+from sklearn import svm
+from sklearn.externals import joblib
+
"""
(1) The text is an array of chars (in row-major order) where
@@ -57,27 +60,59 @@
return np.ones((x, y), np.uint8)
-def enhanceSID(image):
- image=255-image
- image=img_as_ubyte(image>100)
+def segment_by_contours(image, sorted_ctrs, classifier):
+ sid_no = ""
+ for i, ctr in enumerate(sorted_ctrs):
+ # Get bounding box
+ x, y, w, h = cv2.boundingRect(ctr)
+ # Getting ROI
+ if w < h / 2:
+ sid_no = sid_no + "1"
+ continue
+ roi = image[y : y + h, x : x + w]
+ roi = img_as_ubyte(roi < 128)
+ roi = cv2.resize(roi, (32, 32))
+
+ # cv2.rectangle(image,(x,y),( x + w, y + h ),(0,255,0),2)
+ cv2.imwrite("sid_no_{}.png".format(i), roi)
+ sid_no = sid_no + str(classifier.predict(roi.reshape(1, -1) / 255.0)[0])
+ return sid_no
+
+
+def getSID(image, classifier, sid_mask):
+ image = 255 - image
+ image = img_as_ubyte(image > 100)
cv2.imwrite("enSID0.png", image)
# Remove noise
- image = cv2.morphologyEx(image, cv2.MORPH_OPEN, kernel(2,2), iterations=1)
+ image = cv2.morphologyEx(image, cv2.MORPH_OPEN, kernel(2, 2), iterations=1)
# Closing. Connect non connected parts
- image = cv2.morphologyEx(image, cv2.MORPH_CLOSE, kernel(5, 5), iterations=2)
+ image = cv2.morphologyEx(image, cv2.MORPH_CLOSE, kernel(5, 3), iterations=4)
# Again noise removal after closing
- image = cv2.morphologyEx(image, cv2.MORPH_OPEN, kernel(8,8), iterations=1)
+
+ image = cv2.morphologyEx(image, cv2.MORPH_OPEN, kernel(8, 8), iterations=1)
# Skeletonization
- ##For thinning I am using erosion
- ##image = cv2.erode(image,kernel(4,4),iterations = 40)
- image = img_as_ubyte(morphology.thin(image>128))
- cv2.imwrite("enSID1.png",image)
+ image = img_as_ubyte(morphology.thin(image > 128))
+ cv2.imwrite("enSID1.png", image)
# Stub removal (might not be necessary if thinning instead of skeletonize is used above
# Making lines stronger
image = cv2.morphologyEx(image, cv2.MORPH_DILATE, kernel(5, 5), iterations=1)
image = cv2.morphologyEx(image, cv2.MORPH_CLOSE, kernel(10, 10))
# Thining again
- image = img_as_ubyte(morphology.skeletonize(image>0.5))
+ image = img_as_ubyte(morphology.skeletonize(image > 0.5))
image = cv2.morphologyEx(image, cv2.MORPH_DILATE, kernel(10, 10))
- return image
+
+ im2, ctrs, hier = cv2.findContours(
+ image.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE
+ )
+ sorted_ctrs = sorted(ctrs, key=lambda ctr: cv2.boundingRect(ctr)[0])
+
+ sid_no = ""
+ sid_len = 0
+ if sid_mask is not None:
+ if len(sid_mask)==len(sorted_ctrs):
+ sid_no=segment_by_contours(image,sorted_ctrs,classifier)
+ else:
+ print("Ooops have to find another way")
+ print(sid_no)
+ return sid_no
--
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