From aa6fb76e0f25461d5ec3c9ff6f5f3a0751aeee11 Mon Sep 17 00:00:00 2001
From: catscarlet <i@catscarlet.com>
Date: Fri, 28 Feb 2025 17:06:42 +0800
Subject: [PATCH 1/3] ensure CUDAExecutionProvider is called in session when
 using nvidia gpu.

---
 rembg/sessions/base.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/rembg/sessions/base.py b/rembg/sessions/base.py
index bfcb115..0d97d44 100644
--- a/rembg/sessions/base.py
+++ b/rembg/sessions/base.py
@@ -13,9 +13,17 @@ class BaseSession:
     def __init__(self, model_name: str, sess_opts: ort.SessionOptions, *args, **kwargs):
         """Initialize an instance of the BaseSession class."""
         self.model_name = model_name
+
+        device_type = ort.get_device()
+        if device_type == 'GPU' and 'CUDAExecutionProvider' in ort.get_available_providers():
+            providers = ['CUDAExecutionProvider', 'CPUExecutionProvider']
+        else:
+            providers = ['CPUExecutionProvider']
+
         self.inner_session = ort.InferenceSession(
             str(self.__class__.download_models(*args, **kwargs)),
             sess_options=sess_opts,
+            providers=providers,
         )
 
     def normalize(

From adfe3a06c63daf02b7a3721364e244a898e8e7d0 Mon Sep 17 00:00:00 2001
From: catscarlet <i@catscarlet.com>
Date: Fri, 28 Feb 2025 17:08:34 +0800
Subject: [PATCH 2/3] Update info about gpu acceleration issue.

---
 README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index ca4ca63..c789efc 100644
--- a/README.md
+++ b/README.md
@@ -100,14 +100,14 @@ pip install "rembg[cli]" # for library + cli
 
 Otherwise, install `rembg` with explicit CPU/GPU support.
 
-CPU support:
+### CPU support:
 
 ```bash
 pip install rembg[cpu] # for library
 pip install "rembg[cpu,cli]" # for library + cli
 ```
 
-GPU support:
+### GPU support:
 
 First of all, you need to check if your system supports the `onnxruntime-gpu`.
 
@@ -124,6 +124,8 @@ pip install "rembg[gpu]" # for library
 pip install "rembg[gpu,cli]" # for library + cli
 ```
 
+Nvidia GPU may require onnxruntime-gpu, cuda, and cudnn-devel. [#668](https://github.com/danielgatis/rembg/issues/668#issuecomment-2689830314) . If rembg[gpu] couldn't work probably and your can't install cuda or cudnn-devel, use rembg[cpu] and onnxruntime instead.
+
 ## Usage as a cli
 
 After the installation step you can use rembg just typing `rembg` in your terminal window.

From 1b37f6d3a4cb995e564051cccbba2ca430a967b4 Mon Sep 17 00:00:00 2001
From: catscarlet <i@catscarlet.com>
Date: Fri, 28 Feb 2025 17:12:24 +0800
Subject: [PATCH 3/3] Add info about docker support

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index c789efc..e38e400 100644
--- a/README.md
+++ b/README.md
@@ -348,6 +348,8 @@ Try this:
 docker run -v path/to/input:/rembg danielgatis/rembg i input.png path/to/output/output.png
 ```
 
+Notice: Right now docker version only support CPU Acceleration.
+
 ## Models
 
 All models are downloaded and saved in the user home folder in the `.u2net` directory.