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import gradio as gr |
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import numpy as np |
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import torch |
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import torch.nn.functional as F |
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from PIL import Image |
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from mmdet.registry import MODELS |
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from mmdet.structures import DetDataSample |
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from mmengine import Config, print_log |
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from mmengine.structures import InstanceData |
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from PIL import ImageDraw |
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IMG_SIZE = 1024 |
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TITLE = "<center><strong><font size='8'>🚀RAP-SAM: Towards Real-Time All-Purpose Segment Anything<font></strong></center>" |
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CSS = "h1 { text-align: center } .about { text-align: justify; padding-left: 10%; padding-right: 10%; }" |
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model_cfg = Config.fromfile('app/configs/rap_sam_r50_12e_adaptor.py') |
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model = MODELS.build(model_cfg.model) |
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu") |
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model = model.to(device=device) |
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model = model.eval() |
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model.init_weights() |
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mean = torch.tensor([123.675, 116.28, 103.53], device=device)[:, None, None] |
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std = torch.tensor([58.395, 57.12, 57.375], device=device)[:, None, None] |
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examples = [ |
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["assets/000000000139.jpg"], |
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["assets/000000000285.jpg"], |
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["assets/000000000632.jpg"], |
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["assets/000000000724.jpg"], |
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] |
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class IMGState: |
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def __init__(self): |
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self.img = None |
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self.selected_points = [] |
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self.available_to_set = True |
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def set_img(self, img): |
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self.img = img |
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self.available_to_set = False |
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def clear(self): |
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self.img = None |
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self.selected_points = [] |
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self.available_to_set = True |
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def clean(self): |
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self.selected_points = [] |
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@property |
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def available(self): |
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return self.available_to_set |
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@classmethod |
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def cls_clean(cls, state): |
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state.clean() |
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return Image.fromarray(state.img), None |
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@classmethod |
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def cls_clear(cls, state): |
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state.clear() |
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return None, None |
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def store_img(img, img_state): |
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w, h = img.size |
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scale = IMG_SIZE / max(w, h) |
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new_w = int(w * scale) |
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new_h = int(h * scale) |
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img = img.resize((new_w, new_h), resample=Image.Resampling.BILINEAR) |
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img_numpy = np.array(img) |
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img_state.set_img(img_numpy) |
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print_log(f"Successfully loaded an image with size {new_w} x {new_h}", logger='current') |
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return img, None |
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def get_points_with_draw(image, img_state, evt: gr.SelectData): |
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x, y = evt.index[0], evt.index[1] |
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print_log(f"Point: {x}_{y}", logger='current') |
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point_radius, point_color = 10, (97, 217, 54) |
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img_state.selected_points.append([x, y]) |
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if len(img_state.selected_points) > 0: |
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img_state.selected_points = img_state.selected_points[-1:] |
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image = Image.fromarray(img_state.img) |
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draw = ImageDraw.Draw(image) |
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draw.ellipse( |
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[(x - point_radius, y - point_radius), (x + point_radius, y + point_radius)], |
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fill=point_color, |
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) |
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return image |
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def segment_point(image, img_state): |
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output_img = img_state.img |
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h, w = output_img.shape[:2] |
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img_tensor = torch.tensor(output_img, device=device, dtype=torch.float32).permute((2, 0, 1))[None] |
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img_tensor = (img_tensor - mean) / std |
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im_w = w if w % 32 == 0 else w // 32 * 32 + 32 |
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im_h = h if h % 32 == 0 else h // 32 * 32 + 32 |
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img_tensor = F.pad(img_tensor, (0, im_w - w, 0, im_h - h), 'constant', 0) |
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if len(img_state.selected_points) > 0: |
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input_points = torch.tensor(img_state.selected_points, dtype=torch.float32, device=device) |
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batch_data_samples = [DetDataSample()] |
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selected_point = torch.cat([input_points - 3, input_points + 3], 1) |
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gt_instances = InstanceData( |
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point_coords=selected_point, |
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) |
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pb_labels = torch.ones(len(gt_instances), dtype=torch.long, device=device) |
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gt_instances.pb_labels = pb_labels |
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batch_data_samples[0].gt_instances_collected = gt_instances |
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batch_data_samples[0].set_metainfo(dict(batch_input_shape=(im_h, im_w))) |
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batch_data_samples[0].set_metainfo(dict(img_shape=(h, w))) |
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else: |
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batch_data_samples = [DetDataSample()] |
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batch_data_samples[0].set_metainfo(dict(batch_input_shape=(im_h, im_w))) |
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batch_data_samples[0].set_metainfo(dict(img_shape=(h, w))) |
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with torch.no_grad(): |
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masks, cls_pred = model.predict_with_point(img_tensor, batch_data_samples) |
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masks = masks[0, 0, :h, :w] |
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masks = masks > 0. |
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rgb_shape = tuple(list(masks.shape) + [3]) |
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color = np.zeros(rgb_shape, dtype=np.uint8) |
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color[masks] = np.array([97, 217, 54]) |
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output_img = (output_img * 0.7 + color * 0.3).astype(np.uint8) |
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output_img = Image.fromarray(output_img) |
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return image, output_img |
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def register_title(): |
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with gr.Row(): |
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with gr.Column(scale=1): |
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gr.Markdown(TITLE) |
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def register_point_mode(): |
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with gr.Tab("Point mode"): |
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img_state = gr.State(IMGState()) |
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with gr.Row(variant="panel"): |
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with gr.Column(scale=1): |
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img_p = gr.Image(label="Input Image", type="pil") |
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with gr.Column(scale=1): |
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segm_p = gr.Image(label="Segment", interactive=False, type="pil") |
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with gr.Row(): |
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with gr.Column(): |
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with gr.Row(): |
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with gr.Column(): |
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segment_btn = gr.Button("Segment", variant="primary") |
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with gr.Column(): |
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clean_btn = gr.Button("Clean Prompts", variant="secondary") |
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with gr.Row(): |
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with gr.Column(): |
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gr.Markdown("Try some of the examples below ⬇️") |
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gr.Examples( |
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examples=examples, |
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inputs=[img_p, img_state], |
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outputs=[img_p, segm_p], |
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examples_per_page=4, |
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fn=store_img, |
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run_on_click=True |
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) |
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img_p.upload( |
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store_img, |
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[img_p, img_state], |
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[img_p, segm_p] |
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) |
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img_p.select( |
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get_points_with_draw, |
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[img_p, img_state], |
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img_p |
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) |
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segment_btn.click( |
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segment_point, |
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[img_p, img_state], |
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[img_p, segm_p] |
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) |
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clean_btn.click( |
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IMGState.cls_clean, |
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img_state, |
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[img_p, segm_p] |
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) |
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img_p.clear( |
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IMGState.cls_clear, |
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img_state, |
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[img_p, segm_p] |
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) |
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def build_demo(): |
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with gr.Blocks(css=CSS, title="RAP-SAM") as _demo: |
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register_title() |
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register_point_mode() |
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return _demo |
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if __name__ == '__main__': |
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demo = build_demo() |
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demo.queue(api_open=False) |
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demo.launch(server_name='0.0.0.0') |
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