AttributeError: 'NoneType' object has no attribute ‘shape'

[cedro3]

When I run the quickstart python cat.py in Google Colab, I get the following error:

Traceback (most recent call last): File "cat.py", line 129, in dirmask, = rotate(dir_mask, -angle, pad_color=0) File "/content/Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale/drawpatch.py", line 9, in rotate (h, w) = image.shape[:2] AttributeError: 'NoneType' object has no attribute ‘shape'

[nareshr8]

The other issue that I have raised (https://github.com/TZYSJTU/Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale/issues/1) is the reason for this error. One of the intermediate file is not getting generated.

[TZYSJTU]

if name == 'main':

file_name = os.path.basename(input_path)
file_name = file_name.split('.')[0]
print(file_name)
output_path = output_path+"/"+file_name
if not os.path.exists(output_path):
    os.makedirs(output_path)
    os.makedirs(output_path+"/mask")
    os.makedirs(output_path+"/process")

check whether these directories generated

[nareshr8]

mask and process folders are generated. Infact mask{}.png is getting generated. but the file that is expected is dir_mask{}.png which is not getting generated.

[TZYSJTU]

    for i in range(self.dir_num):
        if i==0:
            minimum = -90
            maximum = -90+length/2
            mask1 = 255*(((angle>minimum)+(angle==minimum))*(angle<maximum))
            maximum = 90
            minimum = 90-length/2
            mask2 = 255*((angle>minimum)+(angle==minimum))
            mask = mask1 + mask2
            cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))
        else:
            minimum = -90+(i-1/2)*length   
            maximum = minimum + length  
            mask = 255*(((angle>minimum)+(angle==minimum))*(angle<maximum))
            cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))

The corresponding code is in the file ETF/edge_tangent_flow.py Please check why these dir_mask{}.png files are not generated.

[cedro3]

mask .png and tone_cumulate .png are generated in the mask folder. However, nothing is generated in the process folder.

[TZYSJTU]

see git

------------------ 原始邮件 ------------------ 发件人: "Yuichi Sugita"<notifications@github.com>; 发送时间: 2020年12月17日(星期四) 晚上9:16 收件人: "TZYSJTU/Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale"<Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale@noreply.github.com>; 抄送: "Einsames Brandenburg"<1390139621@qq.com>; "Comment"<comment@noreply.github.com>; 主题: Re: [TZYSJTU/Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale] AttributeError: 'NoneType' object has no attribute ‘shape' (#2)

mask .png and tone_cumulate .png are generated in the mask folder. However, nothing is generated in the process folder.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.

[cedro3]

Would you tell me how to get python cat.py working correctly?

[TZYSJTU]

for i in range(self.dir_num):
    if i==0:
        minimum = -90
        maximum = -90+length/2
        mask1 = 255*(((angle>minimum)+(angle==minimum))*(angle<maximum))
        maximum = 90
        minimum = 90-length/2
        mask2 = 255*((angle>minimum)+(angle==minimum))
        mask = mask1 + mask2
        cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))
    else:
        minimum = -90+(i-1/2)*length   
        maximum = minimum + length  
        mask = 255*(((angle>minimum)+(angle==minimum))*(angle<maximum))
        cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))

Please improve your coding skills

[nareshr8]

@TZYSJTU stop being rude. First of all @cedro3 is just asking about execution. If your code isn't working and throwing errors people are asking about it, it has nothing to do with their coding skill. You suggest to run a Python file. But it is failing. Its your code which should be inspected.

Your code is not running in our machine. In that case it is not we who are at fault. Your potential arguments that it is working on my and my friends machine aren't relevant.

Note: You have no rights to comment on others coding skills. You haven't seen his or my coding skill to judge us. In the end its your code that is not replicatable. I respect your work. But stop being rude.

[TZYSJTU]

I can't guarantee that my code can run successfully on everyone's machines because of various strange reasons. In addition, I have pointed out the corresponding solution to you. I think I have done enough.

[cedro3]

Thank you for your kind point. With the code you taught me, I modified lines 137-151 in edge_tangent_flow.py. However, the same error occurs as shown below.

Traceback (most recent call last): File "cat.py", line 129, in dirmask, = rotate(dir_mask, -angle, pad_color=0) File "/content/Sketch-Generation-with-Drawing-Process-Guided-by-Vector-Flow-and-Grayscale/drawpatch.py", line 9, in rotate (h, w) = image.shape[:2] AttributeError: 'NoneType' object has no attribute 'shape'

[TZYSJTU]

This means 'image' is none. Is dir_mask{}.png generated now?

[nareshr8]

Yes. Found the issue. The line : cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))

must be:

cv2.imwrite(self.output_path+'/dir_mask{}.png'.format(i),np.uint8(mask.numpy()))

The mismatch has an extra dot in the first parameter near between output_path and / cv2.imwrite(self.output_path+'./dir_mask{}.png'.format(i),np.uint8(mask.numpy()))

Removing it in both if and else resolved it.

[TZYSJTU]

Thanks for your discovery, I have corrected the code. I like programmers like you. @nareshr8

[cedro3]

Thank you so much. The error has been fixed.