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readme : improve readme for Llava-1.6 example (#6044)

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Co-authored-by: Jian Liao <jianliao@adobe.com>
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@ -63,12 +63,20 @@ Now both the LLaMA part and the image encoder is in the `llava-v1.5-7b` director
```console ```console
git clone https://huggingface.co/liuhaotian/llava-v1.6-vicuna-7b git clone https://huggingface.co/liuhaotian/llava-v1.6-vicuna-7b
``` ```
2) Use `llava-surgery-v2.py` which also supports llava-1.5 variants pytorch as well as safetensor models:
2) Install the required Python packages:
```sh
pip install -r examples/llava/requirements.txt
```
3) Use `llava-surgery-v2.py` which also supports llava-1.5 variants pytorch as well as safetensor models:
```console ```console
python examples/llava/llava-surgery-v2.py -C -m ../llava-v1.6-vicuna-7b/ python examples/llava/llava-surgery-v2.py -C -m ../llava-v1.6-vicuna-7b/
``` ```
- you will find a llava.projector and a llava.clip file in your model directory - you will find a llava.projector and a llava.clip file in your model directory
3) Copy the llava.clip file into a subdirectory (like vit), rename it to pytorch_model.bin and add a fitting vit configuration to the directory:
4) Copy the llava.clip file into a subdirectory (like vit), rename it to pytorch_model.bin and add a fitting vit configuration to the directory:
```console ```console
mkdir vit mkdir vit
cp ../llava-v1.6-vicuna-7b/llava.clip vit/pytorch_model.bin cp ../llava-v1.6-vicuna-7b/llava.clip vit/pytorch_model.bin
@ -76,18 +84,18 @@ cp ../llava-v1.6-vicuna-7b/llava.projector vit/
curl -s -q https://huggingface.co/cmp-nct/llava-1.6-gguf/raw/main/config_vit.json -o vit/config.json curl -s -q https://huggingface.co/cmp-nct/llava-1.6-gguf/raw/main/config_vit.json -o vit/config.json
``` ```
4) Create the visual gguf model: 5) Create the visual gguf model:
```console ```console
python ./examples/llava/convert-image-encoder-to-gguf.py -m vit --llava-projector vit/llava.projector --output-dir vit --clip-model-is-vision python ./examples/llava/convert-image-encoder-to-gguf.py -m vit --llava-projector vit/llava.projector --output-dir vit --clip-model-is-vision
``` ```
- This is similar to llava-1.5, the difference is that we tell the encoder that we are working with the pure vision model part of CLIP - This is similar to llava-1.5, the difference is that we tell the encoder that we are working with the pure vision model part of CLIP
5) Then convert the model to gguf format: 6) Then convert the model to gguf format:
```console ```console
python ./convert.py ../llava-v1.6-vicuna-7b/ --skip-unknown python ./convert.py ../llava-v1.6-vicuna-7b/ --skip-unknown
``` ```
6) And finally we can run the llava-cli using the 1.6 model version: 7) And finally we can run the llava-cli using the 1.6 model version:
```console ```console
./llava-cli -m ../llava-v1.6-vicuna-7b/ggml-model-f16.gguf --mmproj vit/mmproj-model-f16.gguf --image some-image.jpg -c 4096 ./llava-cli -m ../llava-v1.6-vicuna-7b/ggml-model-f16.gguf --mmproj vit/mmproj-model-f16.gguf --image some-image.jpg -c 4096
``` ```