lomolive.py 文件源码

def gen_pic(MediaId):
    pic = Image.open('media/' + MediaId).convert('LA')
#   pic = ImageEnhance.Brightness(pic).enhance(0.35)
    portion = pic.size[0]/pic.size[1]

    if portion < 1:
        #portrait
        if portion <= 0.75:
            pic_w = 960
            pic_h = round(960/portion)
            box = (0,round((pic_h-1280)/2),960,round(pic_h/2+640))

        if portion > 0.75:
            pic_h = 1280
            pic_w = round(1280*portion)
            box = (round((pic_w-960)/2),0,round(pic_w/2+480),1280)

        layer = Image.open('./lomolive/layer_p.png')

    elif portion > 1:
        #landscape
        if portion >= 1.3333:
            pic_h = 960
            pic_w = round(960*portion)
            box = (round((pic_w-1280)/2),0,round(pic_w/2+640),960)

        if portion < 1.3333:
            pic_w = 1280
            pic_h = round(1280/portion)
            box = (0,round((pic_h-960)/2),1280,round(pic_h/2+480))

        layer = Image.open('./lomolive/layer_l.png')

    elif portion == 1:
        #square
        (pic_w,pic_h) = (960,960)
        box = (0,0,960,960)
        layer = Image.open('./lomolive/layer_s.png')

    pic = pic.resize((pic_w, pic_h))
    pic = pic.crop(box)
    pic = lomoize(pic, 0.4, 1)
    pic = pic.convert('RGB')
    pic.paste(layer,(0,0),layer)

    pic.save('media/' + MediaId + '.jpg', quality=95)