Python实现图片尺寸缩放脚本

2023-09-15 14:40:05 59

#coding=utf-8 importImage importshutil importos classGraphics: infile='D:\\myimg.jpg' outfile='D:\\adjust_img.jpg' @classmethod deffixed_size(cls,width,height): """按照固定尺寸处理图片""" im=Image.open(cls.infile) out=im.resize((width,height),Image.ANTIALIAS) out.save(cls.outfile) @classmethod defresize_by_width(cls,w_divide_h): """按照宽度进行所需比例缩放""" im=Image.open(cls.infile) (x,y)=im.size x_s=x y_s=x/w_divide_h out=im.resize((x_s,y_s),Image.ANTIALIAS) out.save(cls.outfile) @classmethod defresize_by_height(cls,w_divide_h): """按照高度进行所需比例缩放""" im=Image.open(cls.infile) (x,y)=im.size x_s=y*w_divide_h y_s=y out=im.resize((x_s,y_s),Image.ANTIALIAS) out.save(cls.outfile) @classmethod defresize_by_size(cls,size): """按照生成图片文件大小进行处理(单位KB)""" size*=1024 im=Image.open(cls.infile) size_tmp=os.path.getsize(cls.infile) q=100 whilesize_tmp>sizeandq>0: printq out=im.resize(im.size,Image.ANTIALIAS) out.save(cls.outfile,quality=q) size_tmp=os.path.getsize(cls.outfile) q-=5 ifq==100: shutil.copy(cls.infile,cls.outfile) @classmethod defcut_by_ratio(cls,width,height): """按照图片长宽比进行分割""" im=Image.open(cls.infile) width=float(width) height=float(height) (x,y)=im.size ifwidth>height: region=(0,int((y-(y*(height/width)))/2),x,int((y+(y*(height/width)))/2)) elifwidth

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Python实现图片尺寸缩放脚本

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