add ldm superresolution

[westfish]

PR types

New features

PR changes

Models

Description

ppdiffusers新增超分(Super-Resolution)任务 ppdiffusers新增LDM Super-Resolution Pipeline，支持LDM Super-resolution任务和预训练模型

使用方法：

import paddle
from ppdiffusers import LDMSuperResolutionPipeline
from PIL import Image

pipe = LDMSuperResolutionPipeline.from_pretrained('westfish/ldm-super-resolution-paddle')

img = Image.open('p2526-resize.jpeg')
super_img = pipe(img, num_inference_steps=100, eta=1)
super_img = super_img['images'][0]

效果展示： 原图片

超分图片