recognise misaligned pictures of handwritten digits with CNN
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Hello I'm trying to make a programm that recognises handwritten digits (from MNIST). I've actually done it and it works quite good. (I made a CNN that reaches 98% of accuracy on the test dataset)
Then I created a programm where you could wrtie the digits with your mouse and the computer said wich digit you had written. When you write the digits in the middle of the screen, it works good, but when you write almost the same thing but a little bit misaligned, it dosen't work anymore. Is there a special cnn architecture for that? I tryed several architecture but it's alway the same. Maybe the problem is in the training data? --> because all the the digits are written in the middle of the picture.
tensorflow conv-neural-network mnist
asked Nov 8 at 19:12
Nicolas Schmid
144
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Hello I'm trying to make a programm that recognises handwritten digits (from MNIST). I've actually done it and it works quite good. (I made a CNN that reaches 98% of accuracy on the test dataset)
Then I created a programm where you could wrtie the digits with your mouse and the computer said wich digit you had written. When you write the digits in the middle of the screen, it works good, but when you write almost the same thing but a little bit misaligned, it dosen't work anymore. Is there a special cnn architecture for that? I tryed several architecture but it's alway the same. Maybe the problem is in the training data? --> because all the the digits are written in the middle of the picture.
tensorflow conv-neural-network mnist
asked Nov 8 at 19:12
Nicolas Schmid
144
Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Hello I'm trying to make a programm that recognises handwritten digits (from MNIST). I've actually done it and it works quite good. (I made a CNN that reaches 98% of accuracy on the test dataset)
Then I created a programm where you could wrtie the digits with your mouse and the computer said wich digit you had written. When you write the digits in the middle of the screen, it works good, but when you write almost the same thing but a little bit misaligned, it dosen't work anymore. Is there a special cnn architecture for that? I tryed several architecture but it's alway the same. Maybe the problem is in the training data? --> because all the the digits are written in the middle of the picture.
tensorflow conv-neural-network mnist
asked Nov 8 at 19:12
Nicolas Schmid
144
Hello I'm trying to make a programm that recognises handwritten digits (from MNIST). I've actually done it and it works quite good. (I made a CNN that reaches 98% of accuracy on the test dataset)
Then I created a programm where you could wrtie the digits with your mouse and the computer said wich digit you had written. When you write the digits in the middle of the screen, it works good, but when you write almost the same thing but a little bit misaligned, it dosen't work anymore. Is there a special cnn architecture for that? I tryed several architecture but it's alway the same. Maybe the problem is in the training data? --> because all the the digits are written in the middle of the picture.
tensorflow conv-neural-network mnist
tensorflow conv-neural-network mnist
asked Nov 8 at 19:12
Nicolas Schmid
144
asked Nov 8 at 19:12
Nicolas Schmid
144
asked Nov 8 at 19:12
Nicolas Schmid
144
asked Nov 8 at 19:12
Nicolas Schmid
144
asked Nov 8 at 19:12
Nicolas Schmid
144
144
Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22
add a comment |
Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22
Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22
add a comment |
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Have you tried preprocessing the input drawing data in some way (eg. trimming the blank spaces beforehand, if you're only trying to recognize one digit)? That way your input written digit will always be in the "middle".
– Carol Ng
Nov 9 at 8:34
That's a great idea! I'm gonna try to do it
– Nicolas Schmid
Nov 10 at 9:22