Add AIMMO dataset to DDRNet.pytorch

aimmo_dataset.patch

From 53ed3d93263ae734ea2b09607b2769454924ad1e Mon Sep 17 00:00:00 2001
From: Taehun Kim <kth3321@gmail.com>
Date: Wed, 28 Jul 2021 13:53:33 +0900
Subject: [PATCH] Add AIMMO dataset

---
 lib/datasets/__init__.py | 11 +++---
 lib/datasets/aimmo.py    | 78 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+), 6 deletions(-)
 create mode 100644 lib/datasets/aimmo.py

diff --git a/lib/datasets/__init__.py b/lib/datasets/__init__.py
index 836d3b3..6df22c7 100644
--- a/lib/datasets/__init__.py
+++ b/lib/datasets/__init__.py
@@ -4,13 +4,12 @@
 # Written by Ke Sun (sunk@mail.ustc.edu.cn)
 # ------------------------------------------------------------------------------
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
+from .ade20k import ADE20K as ade20k
+from .aimmo import AIMMO as aimmo
 from .cityscapes import Cityscapes as cityscapes
+from .cocostuff import COCOStuff as cocostuff
 from .lip import LIP as lip
-from .pascal_ctx import PASCALContext as pascal_ctx
-from .ade20k import ADE20K as ade20k
 from .map import MAP as map
-from .cocostuff import COCOStuff as cocostuff
\ No newline at end of file
+from .pascal_ctx import PASCALContext as pascal_ctx
diff --git a/lib/datasets/aimmo.py b/lib/datasets/aimmo.py
new file mode 100644
index 0000000..8b61e6e
--- /dev/null
+++ b/lib/datasets/aimmo.py
@@ -0,0 +1,78 @@
+# ------------------------------------------------------------------------------
+# Copyright (c) AIMMO
+# Licensed under the MIT License.
+# Written by Taehun Kim (kth3321@gmail.com)
+# ------------------------------------------------------------------------------
+
+import os
+
+import cv2
+import numpy as np
+import torch
+from PIL import Image
+from torch.nn import functional as F
+
+from .base_dataset import BaseDataset
+
+
+class AIMMO(BaseDataset):
+    def __init__(
+        self,
+        root,
+        list_path,
+        num_samples=None,
+        num_classes=10,
+        multi_scale=True,
+        flip=True,
+        ignore_label=-1,
+        base_size=1024,
+        crop_size=(1024, 1024),
+        downsample_rate=1,
+        scale_factor=16,
+        mean=[0.485, 0.456, 0.406],
+        std=[0.229, 0.224, 0.225],
+    ):
+
+        super(AIMMO, self).__init__(ignore_label, base_size, crop_size, downsample_rate, scale_factor, mean, std)
+
+        self.root = root
+        self.num_classes = num_classes
+        self.list_path = list_path
+        self.class_weights = None
+
+        self.multi_scale = multi_scale
+        self.flip = flip
+        self.img_list = [line.strip().split() for line in open(root + list_path)]
+
+        self.files = self.read_files()
+        if num_samples:
+            self.files = self.files[:num_samples]
+
+    def read_files(self):
+        files = []
+        for item in self.img_list:
+            image_path, label_path = item
+            name = os.path.splitext(os.path.basename(label_path))[0]
+            sample = {"img": image_path, "label": label_path, "name": name}
+            files.append(sample)
+        return files
+
+    def resize_image(self, image, label, size):
+        image = cv2.resize(image, size, interpolation=cv2.INTER_LINEAR)
+        label = cv2.resize(label, size, interpolation=cv2.INTER_NEAREST)
+        return image, label
+
+    def __getitem__(self, index):
+        item = self.files[index]
+        name = item["name"]
+        image_path = os.path.join(self.root, "aimmo", item["img"])
+        label_path = os.path.join(self.root, "aimmo", item["label"])
+        image = cv2.imread(image_path, cv2.IMREAD_COLOR)
+        label = cv2.imread(label_path, cv2.IMREAD_GRAYSCALE)
+
+        size = label.shape
+
+        image, label = self.resize_image(image, label, self.crop_size)
+        image, label = self.gen_sample(image, label, self.multi_scale, self.flip)
+
+        return image.copy(), label.copy(), np.array(size), name
-- 
2.29.2