fixed issue with zero shot viz

vision_agent/agent/vision_agent.py

@@ -340,9 +340,13 @@ def _handle_viz_tools(
  return image_to_data
 
  for param, call_result in zip(parameters, tool_result["call_results"]):
- # calls can fail, so we need to check if the call was successful
+ # Calls can fail, so we need to check if the call was successful. It can either:
+ # 1. return a str or some error that's not a dictionary
+ # 2. return a dictionary but not have the necessary keys
  if not isinstance(call_result, dict) or (
- "bboxes" not in call_result and "masks" not in call_result
+ "bboxes" not in call_result
+ and "masks" not in call_result
+ and "heat_map" not in call_result
  ):
  return image_to_data
 
@@ -352,6 +356,7 @@ def _handle_viz_tools(
  image_to_data[image] = {
  "bboxes": [],
  "masks": [],
+ "heat_map": [],
  "labels": [],
  "scores": [],
  }
@@ -360,6 +365,8 @@ def _handle_viz_tools(
  image_to_data[image]["labels"].extend(call_result.get("labels", []))
  image_to_data[image]["scores"].extend(call_result.get("scores", []))
  image_to_data[image]["masks"].extend(call_result.get("masks", []))
+ # only single heatmap is returned
+ image_to_data[image]["heat_map"].append(call_result.get("heat_map", []))
  if "mask_shape" in call_result:
  image_to_data[image]["mask_shape"] = call_result["mask_shape"]
 

vision_agent/image_utils.py

@@ -211,7 +211,7 @@ def overlay_masks(
  }
 
  for label, mask in zip(masks["labels"], masks["masks"]):
- if isinstance(mask, str):
+ if isinstance(mask, str) or isinstance(mask, Path):
  mask = np.array(Image.open(mask))
  np_mask = np.zeros((image.size[1], image.size[0], 4))
  np_mask[mask > 0, :] = color[label] + (255 * alpha,)
@@ -221,7 +221,7 @@ def overlay_masks(
 
 
 def overlay_heat_map(
- image: Union[str, Path, np.ndarray, ImageType], masks: Dict, alpha: float = 0.8
+ image: Union[str, Path, np.ndarray, ImageType], heat_map: Dict, alpha: float = 0.8
 ) -> ImageType:
  r"""Plots heat map on to an image.
 
@@ -238,14 +238,12 @@ def overlay_heat_map(
  elif isinstance(image, np.ndarray):
  image = Image.fromarray(image)
 
- if "masks" not in masks:
+ if "masks" not in heat_map:
  return image.convert("RGB")
 
- # Only one heat map per image, so no need to loop through masks
  image = image.convert("L")
-
- if isinstance(masks["masks"][0], str):
- mask = b64_to_pil(masks["masks"][0])
+ # Only one heat map per image, so no need to loop through masks
+ mask = Image.fromarray(heat_map["heat_map"][0])
 
  overlay = Image.new("RGBA", mask.size)
  odraw = ImageDraw.Draw(overlay)

vision_agent/lmm/lmm.py

@@ -9,10 +9,7 @@
 import requests
 from openai import AzureOpenAI, OpenAI
 
-from vision_agent.tools import (
- CHOOSE_PARAMS,
- SYSTEM_PROMPT,
-)
+from vision_agent.tools import CHOOSE_PARAMS, SYSTEM_PROMPT
 
 _LOGGER = logging.getLogger(__name__)
 

vision_agent/tools/__init__.py

@@ -12,12 +12,12 @@
  GroundingDINO,
  GroundingSAM,
  ImageCaption,
- ZeroShotCounting,
- VisualPromptCounting,
- VisualQuestionAnswering,
  ImageQuestionAnswering,
  SegArea,
  SegIoU,
  Tool,
+ VisualPromptCounting,
+ VisualQuestionAnswering,
+ ZeroShotCounting,
  register_tool,
 )

vision_agent/tools/tools.py

@@ -11,15 +11,16 @@
 from PIL.Image import Image as ImageType
 
 from vision_agent.image_utils import (
+ b64_to_pil,
  convert_to_b64,
  denormalize_bbox,
  get_image_size,
  normalize_bbox,
  rle_decode,
 )
+from vision_agent.lmm import OpenAILMM
 from vision_agent.tools.video import extract_frames_from_video
 from vision_agent.type_defs import LandingaiAPIKey
-from vision_agent.lmm import OpenAILMM
 
 _LOGGER = logging.getLogger(__name__)
 _LND_API_KEY = LandingaiAPIKey().api_key
@@ -516,7 +517,9 @@ def __call__(self, image: Union[str, ImageType]) -> Dict:
  "image": image_b64,
  "tool": "zero_shot_counting",
  }
- return _send_inference_request(data, "tools")
+ resp_data = _send_inference_request(data, "tools")
+ resp_data["heat_map"] = np.array(b64_to_pil(resp_data["heat_map"][0]))
+ return resp_data
 
 
 class VisualPromptCounting(Tool):