--- a
+++ b/utils/pycocoevalcap/eval.py
@@ -0,0 +1,74 @@
+__author__ = 'tylin'
+from .tokenizer.ptbtokenizer import PTBTokenizer
+from .bleu.bleu import Bleu
+from .meteor.meteor import Meteor
+from .rouge.rouge import Rouge
+from .cider.cider import Cider
+
+class COCOEvalCap:
+    def __init__(self, coco, cocoRes):
+        self.evalImgs = []
+        self.eval = {}
+        self.imgToEval = {}
+        self.coco = coco
+        self.cocoRes = cocoRes
+        self.params = {'image_id': cocoRes.getImgIds()}
+
+    def evaluate(self):
+        imgIds = self.params['image_id']
+        # imgIds = self.coco.getImgIds()
+        gts = {}
+        res = {}
+        for imgId in imgIds:
+            gts[imgId] = self.coco.imgToAnns[imgId]
+            res[imgId] = self.cocoRes.imgToAnns[imgId]
+
+        # =================================================
+        # Set up scorers
+        # =================================================
+        print('tokenization...')
+        tokenizer = PTBTokenizer()
+        gts  = tokenizer.tokenize(gts)
+        res = tokenizer.tokenize(res)
+
+        # =================================================
+        # Set up scorers
+        # =================================================
+        print('setting up scorers...')
+        scorers = [
+            (Bleu(4), ["Bleu_1", "Bleu_2", "Bleu_3", "Bleu_4"]),
+            (Meteor(),"METEOR"),
+            (Rouge(), "ROUGE_L"),
+            (Cider(), "CIDEr")
+        ]
+
+        # =================================================
+        # Compute scores
+        # =================================================
+        eval = {}
+        for scorer, method in scorers:
+            print('computing %s score...'%(scorer.method()))
+            score, scores = scorer.compute_score(gts, res)
+            if type(method) == list:
+                for sc, scs, m in zip(score, scores, method):
+                    self.setEval(sc, m)
+                    self.setImgToEvalImgs(scs, imgIds, m)
+                    print("%s: %0.3f"%(m, sc))
+            else:
+                self.setEval(score, method)
+                self.setImgToEvalImgs(scores, imgIds, method)
+                print("%s: %0.3f"%(method, score))
+        self.setEvalImgs()
+
+    def setEval(self, score, method):
+        self.eval[method] = score
+
+    def setImgToEvalImgs(self, scores, imgIds, method):
+        for imgId, score in zip(imgIds, scores):
+            if not imgId in self.imgToEval:
+                self.imgToEval[imgId] = {}
+                self.imgToEval[imgId]["image_id"] = imgId
+            self.imgToEval[imgId][method] = score
+
+    def setEvalImgs(self):
+        self.evalImgs = [eval for imgId, eval in self.imgToEval.items()]