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ShaktiCTF 2021 - pillow 본문

write up/ShaktiCTF 2021

ShaktiCTF 2021 - pillow

heegong 2021. 4. 5. 10:24
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problem

 

 

 

3000개의 파일이 있어서 files라는 폴더에 넣었다.

 

 

 

from PIL import Image


x_size = 10
y_size = 10


def imageMerge(file_list):
    new_image = Image.new("RGB" , (600, 500), "white")

    index = 0
    for i in range(60):
        for j in range(50):
            area = (i*x_size, j*y_size)
            new_image.paste(file_list[index], area)
            index+=1
            print(index)
    new_image.save('save_file.jpg')

path = 'files/'
file_ls = []
for i in range(1,3001):
    im = Image.open(path+str(i)+'.jpg' )
    im.convert('RGB')
    file_ls.append(im)

imageMerge(file_ls)

pillow를 이용해 사진을 붙였다.

 

 

 

 

 

 

플래그 : shaktictf{pill0w_l1k3_a_g00d_c0nscience}

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