diff --git a/data/dataset_config.py b/data/dataset_config.py
index 83e01f5..d48d411 100644
--- a/data/dataset_config.py
+++ b/data/dataset_config.py
@@ -170,9 +170,9 @@ def config_eval_dataloader(args):
         val_loader = DataLoader(val_dataset, num_workers=8, batch_size=1, shuffle=False, pin_memory=True, drop_last=False)
 
     elif args.dataset == "example":  # No annotations (annotation path) given
-        val_data_dirs = ["/path/to/example_dataset/FlowImages_gap1/", 
-                        "/path/to/example_dataset/JPEGImages/"]
-        val_seq = None 
+        val_data_dirs = [f"{args.flow_output}", 
+                        f"{args.img_output}"]
+        val_seq = [args.name] 
         val_dataset = Example_eval_dataset(data_dirs=val_data_dirs, seqs=val_seq, ref_sam=ref_sam, 
                                             dataset=args.dataset, flow_gaps=flow_gaps, num_gridside=args.num_gridside)
         val_loader = DataLoader(val_dataset, num_workers=8, batch_size=1, shuffle=False, pin_memory=True, drop_last=False)
diff --git a/evaluation.py b/evaluation.py
index a544459..eeccb4d 100644
--- a/evaluation.py
+++ b/evaluation.py
@@ -213,7 +213,24 @@ def eval(args, val_loader, flowsam):
         choices=['dvs17', 'dvs17m', 'dvs16', 'ytvos', 'example'],
         help="evaluation datasets",
     )  
-
+    parser.add_argument(
+        '--flow_output', 
+        type=str,
+        default="output/flow/FlowImages_gap1/sample",
+        help="flow frame gaps, a string without spacing",
+    ) 
+    parser.add_argument(
+        '--img_output', 
+        type=str,
+        default="output/images/sample",
+        help="flow frame gaps, a string without spacing",
+    ) 
+    parser.add_argument(
+        '--name', 
+        type=str,
+        default="sample",
+        help="flow frame gaps, a string without spacing"
+    )
     # Output configuration
     parser.add_argument(
         '--max_obj', 
@@ -236,7 +253,7 @@ def eval(args, val_loader, flowsam):
         '--save_path', 
         default=None,
         help="path to save masks",
-    )   
+    )
 
     args = parser.parse_args()
 
diff --git a/flow/predict.py b/flow/predict.py
index 778eab9..d9199ab 100644
--- a/flow/predict.py
+++ b/flow/predict.py
@@ -1,5 +1,6 @@
 import sys
 sys.path.append('core')
+sys.path.append('flow/core')
 
 import os
 import cv2
diff --git a/inference.py b/inference.py
new file mode 100644
index 0000000..2d64164
--- /dev/null
+++ b/inference.py
@@ -0,0 +1,163 @@
+import os
+import glob as gb
+import argparse
+import cv2
+import os
+import requests
+from PIL import Image
+
+def extract_frames(video_path, output_folder):
+    # Create the output folder if it doesn't exist
+    os.makedirs(output_folder, exist_ok=True)
+
+    if video_path.endswith(".gif"):
+        with Image.open(video_path) as img:
+            while True:
+                try:
+                    frame_count = img.tell()
+                    frame_img = img.convert("RGB")
+                    frame_img.save(os.path.join(output_folder, f"{frame_count+1:05d}.jpg"))
+                    img.seek(frame_count + 1)
+                except EOFError:
+                    break
+    else:
+        # Open the video file
+        cap = cv2.VideoCapture(video_path)
+        
+        # Variable to keep track of frame count
+        frame_count = 0
+        
+        # Read frames until there are no more
+        while cap.isOpened():
+            ret, frame = cap.read()
+            if not ret:
+                break
+            
+            # Save the frame as an image
+            frame_path = os.path.join(output_folder, f"{frame_count+1:05d}.jpg")
+            cv2.imwrite(frame_path, frame)
+            
+            frame_count += 1
+
+        # Release the video capture object
+        cap.release()
+
+def extract_flow(rgb_path, flow_output_path):
+    gap = [1, 2]
+    reverse = [0, 1]
+    batch_size = 4
+
+    folder = gb.glob(os.path.join(rgb_path, '*'))
+    for r in reverse:
+        for g in gap:
+            for f in folder:
+                print('===> Running {}, gap {}'.format(f, g))
+                mode = 'flow/raft-things.pth'  # model
+                if r==1:
+                    raw_outroot = flow_output_path + '/Flows_gap-{}/'.format(g)  # where to raw flow
+                    outroot = flow_output_path + '/FlowImages_gap-{}/'.format(g)  # where to save the image flow
+                elif r==0:
+                    raw_outroot = flow_output_path + '/Flows_gap{}/'.format(g)   # where to raw flow
+                    outroot = flow_output_path + '/FlowImages_gap{}/'.format(g)   # where to save the image flow
+                    
+                os.system("python flow/predict.py "
+                            "--gap {} --mode {} --path {} --batch_size {} "
+                            "--outroot {} --reverse {} --raw_outroot {}".format(g, mode, f, batch_size, outroot, r, raw_outroot))
+
+def create_video_from_images(input_folder, output_video_path, fps):
+    # Get the list of image files in the input folder
+    image_files = [os.path.join(input_folder, file) for file in os.listdir(input_folder) if file.endswith('.png')]
+
+    # Sort the image files by name
+    image_files.sort()
+
+    # Get the dimensions of the first image to set the video size
+    first_image = cv2.imread(image_files[0])
+    height, width, _ = first_image.shape
+
+    # Define the codec and create VideoWriter object
+    fourcc = cv2.VideoWriter_fourcc(*'mp4v') # Use appropriate codec based on the output video format
+    out = cv2.VideoWriter(output_video_path, fourcc, fps, (width, height))
+
+    # Iterate over each image and add it to the video
+    for image_file in image_files:
+        img = cv2.imread(image_file)
+        out.write(img)
+
+    # Release VideoWriter object
+    out.release()
+
+def download_weight(filename, url):
+    # Check if the file exists locally
+    if not os.path.exists(filename):
+        print(f"File '{filename}' not found locally. Proceeding with download.")
+
+        # Download the file
+        response = requests.get(url)
+        with open(filename, 'wb') as f:
+            f.write(response.content)
+
+        print("File downloaded successfully!")
+    else:
+        print(f"File '{filename}' already exists locally. No need to download.")
+
+def inference(args):
+    """
+    User should change the configuration path to appropriate path.
+    Install segment-anything
+    """
+    ckpt = 'frame_level_flowpsam_vitbvith_train_on_oclrsyn_dvs17m.pth'
+    rgb_encoder_ckpt_path = 'sam_vit_h_4b8939.pth'
+    download_weight(rgb_encoder_ckpt_path, 'https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth')
+    flow_encoder_ckpt_path = 'sam_vit_b_01ec64.pth'
+    download_weight(flow_encoder_ckpt_path, 'https://dl.fbaipublicfiles.com/segment_anything/sam_vit_b_01ec64.pth')
+    # Split the path into directory and filename
+    directory, filename = os.path.split(args.video_output_path)
+    flow_path = os.path.join(args.flow_output_path, f'FlowImages_gap1')
+    os.system("python evaluation.py "
+                "--model flowpsam --ckpt {} --rgb_encoder_ckpt_path {} --flow_encoder_ckpt_path {} --flow_gaps 1,-1,2,-2 --num_gridside 20 "
+                "--dataset example --flow_output {} --img_output {} --name {} --max_obj 3 --save_path {}".format(
+                    ckpt, rgb_encoder_ckpt_path, flow_encoder_ckpt_path, \
+                    flow_path, directory, filename, args.flowsam_output_path)
+            )
+
+"""
+python inference.py --video_file_path sample.mp4 --video_output_path output/images/sample --extract_frames --flow_output_path output/flow --extract_flow --visualize_flow --run_flowsam --flowsam_output_path output --visualize_output
+python inference.py --video_file_path siren.mp4 --video_output_path output/images/siren --extract_frames --flow_output_path output/flow --extract_flow --visualize_flow --run_flowsam --flowsam_output_path output --visualize_output
+python inference.py --video_file_path highway.mp4 --video_output_path output/images/highway --extract_frames --flow_output_path output/flow --extract_flow --visualize_flow --run_flowsam --flowsam_output_path output --visualize_output
+python inference.py --video_file_path bird.gif --video_output_path output/images/bird --extract_frames --flow_output_path output/flow --extract_flow --visualize_flow --run_flowsam --flowsam_output_path output --visualize_output
+"""
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--video_file_path', type=str, help="restore checkpoint")
+    parser.add_argument('--video_output_path', type=str, help="restore checkpoint")
+    parser.add_argument('--extract_frames', action='store_true', help='convert video file to image file folder')
+
+    parser.add_argument('--flow_output_path', type=str, help="restore checkpoint")
+    parser.add_argument('--extract_flow', action='store_true', help='whether to run flow ')
+    parser.add_argument('--visualize_flow', action='store_true', help='whether to run flow ')
+
+    parser.add_argument('--flowsam_output_path', type=str, help="restore checkpoint")
+    parser.add_argument('--run_flowsam', action='store_true', help='whether to run flow ')
+    parser.add_argument('--visualize_output', action='store_true', help='whether to run flow ')
+    args = parser.parse_args()
+
+    # Split the path into directory and filename
+    directory, filename = os.path.split(args.video_output_path)
+
+    if args.extract_frames:
+        extract_frames(args.video_file_path, args.video_output_path)
+
+    if args.extract_flow:
+        extract_flow(directory, args.flow_output_path)
+    # (Optional) For debug and visualization purpose
+    if args.visualize_flow:
+        flow_path = os.path.join(args.flow_output_path, f'FlowImages_gap-1/{filename}')
+        create_video_from_images(flow_path, f'{args.flow_output_path}/flow.mp4', fps=30)
+
+    if args.run_flowsam:
+        inference(args=args)
+
+    if args.visualize_output:
+        output_path = os.path.join(args.flowsam_output_path, f"nonhung/{filename}")
+        create_video_from_images(output_path, 'output.mp4', fps=30)
\ No newline at end of file