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from PIL import Image
import requests
import torch
from torchvision import transforms
import os
from torchvision.transforms.functional import InterpolationMode
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
import cohere
import base64
import gradio as gr
import string
import openai
def cap(t):
indices = []
tem = ""
for j in range(len(t)):
if t[j] == "." or t[j] == "!" or t[j] == "?":
if j+2 < len(t):
indices.append(j+2)
for j in range(len(t)):
if j in indices:
tem += t[j].upper()
else:
tem += t[j]
return tem
def processing(s):
#create a string[] that holds every sentence
arr = []
temp = ""
fin = ""
for i in range(len(s)):
temp += s[i]
if s[i] == "\n":
arr.append(temp)
temp = ""
if i == len(s)-1:
arr.append(temp)
for i in arr:
t = i
t = t.strip()
temp = ""
#make the first element of the string be the first alpha character
ind = 0
for j in range(len(t)):
if t[j].isalpha():
ind = j
break
t = t[ind:]
t = t.capitalize()
# capitalize all words after punctuation
t = cap(t)
#remove some punctuation
t = t.replace("(", "")
t = t.replace(")", "")
t = t.replace("&", "")
t = t.replace("#", "")
t = t.replace("_", "")
#remove punctuation if it is not following an alpha character
temp = ""
for j in range(len(t)):
if t[j] in string.punctuation:
if t[j-1] not in string.punctuation:
temp += t[j]
else:
temp += t[j]
fin += temp + "\n"
#find the last punctuation in fin and return everything before that
ind = 0
for i in range(len(fin)):
if fin[i] == "." or fin[i] == "?" or fin[i] == "!":
ind = i
if(ind != 0 and ind != len(fin) - 1):
return fin[:ind+1]
else:
return fin
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
from models.blip import blip_decoder
image_size = 384
transform = transforms.Compose([
transforms.Resize((image_size,image_size),interpolation=InterpolationMode.BICUBIC),
transforms.ToTensor(),
transforms.Normalize((0.48145466, 0.4578275, 0.40821073), (0.26862954, 0.26130258, 0.27577711))
])
model_url = 'https://storage.googleapis.com/sfr-vision-language-research/BLIP/models/model_large_caption.pth'
model = blip_decoder(pretrained=model_url, image_size=384, vit='large')
model.eval()
model = model.to(device)
from models.blip_vqa import blip_vqa
image_size_vq = 480
transform_vq = transforms.Compose([
transforms.Resize((image_size_vq,image_size_vq),interpolation=InterpolationMode.BICUBIC),
transforms.ToTensor(),
transforms.Normalize((0.48145466, 0.4578275, 0.40821073), (0.26862954, 0.26130258, 0.27577711))
])
model_url_vq = 'https://storage.googleapis.com/sfr-vision-language-research/BLIP/models/model*_vqa.pth'
model_vq = blip_vqa(pretrained=model_url_vq, image_size=480, vit='base')
model_vq.eval()
model_vq = model_vq.to(device)
def inference(raw_image, model_n, question="", strategy=""):
if model_n == 'Image Captioning':
image = transform(raw_image).unsqueeze(0).to(device)
with torch.no_grad():
if strategy == "Beam search":
caption = model.generate(image, sample=False, num_beams=3, max_length=20, min_length=5)
else:
caption = model.generate(image, sample=True, top_p=0.9, max_length=20, min_length=5)
return 'caption: '+caption[0]
else:
image_vq = transform_vq(raw_image).unsqueeze(0).to(device)
with torch.no_grad():
answer = model_vq(image_vq, question, train=False, inference='generate')
return 'answer: '+answer[0]
#get caption for a single iamge
def get_caption(image_path):
img = Image.open(image_path)
return inference(img, "Image Captioning")[9:]
def display(image_path):
img = mpimg.imread(image_path)
img = Image.open(image_path)
plt.imshow(img)
print("Caption: " + get_caption(image_path))
#returns a dictionary with key -> img_path and value -> caption
def get_captions(img_directory, print_status=True):
#key is img path, value is the caption
captions = {}
length = 0
for file in os.listdir(img_directory):
length+=1
count = 0
for file in os.listdir(img_directory):
f = os.path.join(img_directory, file)
captions[f] = inference(Image.open(f), "Image Captioning")
if print_status:
print("Images complete:", str(count) + "/" + str(length))
print("Caption:", captions[f])
return captions
#writes dictionary to file, key and value seperated by ':'
def write_to_file(filename, caption_dict):
with open(filename, "w") as file:
for i in caption_dict:
file.write(i + ":" + caption_dict[i])
file.close()
# Text to Image API
import requests
import base64
def get_image(prompt="Random monster"):
openai.api_key = os.getenv("OPENAI_KEY")
response = openai.Image.create(
prompt = prompt + ", realistic fantasy style",
n=1,
size="256x256"
)
image_url = response['data'][0]['url']
im = Image.open(requests.get(image_url, stream=True).raw)
im.save("sample.png", "PNG")
return im
#add max tokens a slider
def make_image_and_story(prompt):
if(prompt is None or prompt == ""):
img = get_image()
caption = get_caption("sample.png")
co = cohere.Client(os.getenv("COHERE_KEY"))
response = co.generate(prompt=caption, model ='aeb523c3-a79c-48ba-9274-a12ac07492a2-ft', max_tokens=80)
return Image.open("sample.png"), processing(response.generations[0].text)
else:
img = get_image(prompt)
caption = get_caption("sample.png")
caption += " " + prompt
co = cohere.Client(os.getenv("COHERE_KEY"))
response = co.generate(prompt=caption, model ='aeb523c3-a79c-48ba-9274-a12ac07492a2-ft', max_tokens=80)
return Image.open("sample.png"), processing(response.generations[0].text)
gr.Interface(fn=make_image_and_story, inputs="text", outputs=["image","text"],title='Fantasy Creature Generator').launch(); |