rtools/dota_image_split.py bugs!

[PresageBoat]

r3det-on-mmdetection/rtools/dota_image_split.py
Lines 64 to 69 in 5073df9

    def _split_single(self, image_id):
        hdr, objs = self._parse_annotation_single(image_id)
        image_dir = osp.join(self.in_images_dir, image_id + '.png')
        img = cv2.imread(image_dir)
        h, w, _ = img.shape
        w_ovr, h_ovr = self.tile_overlap
        w_s, h_s = self.tile_shape
        for h_off in range(0, max(1, h - h_ovr), h_s - h_ovr):
            if h_off > 0:
                h_off = min(h - h_s, h_off)  # h_off + hs <= h if h_off > 0
            for w_off in range(0, max(1, w - w_ovr), w_s - w_ovr):
                if w_off > 0:
                    w_off = min(w - w_s, w_off)  # w_off + ws <= w if w_off > 0

bug 描述：
当使用此脚本进行crop操作时，图像的最右侧和最下面会存在截取不到的现象，从而会引起训练样本中部分标注目标的丢失，影响训练。
如果bug得到确认和认可的话，我将提交一个修复的请求来修复此问题