Manipulating CVAT Data Using Python

Overview I had the opportunity to manipulate CVAT data using Python, so this is a personal note for future reference. Setup This time, we will start it using Docker. g c d i d o t c c k c v e l a r o t n c e o m h p t o t s p e s : u / p / g - i d t h u b . c o m / c v a t - a i / c v a t - d e p t h 1 Creating an Account Access http://localhost:8080 and create an account. Operations with Python First, install the following library. p i p i n s t a l l c v a t - s d k Write the account information in .env. h u p o s a s e s t r s = n w h a o t m r t e d p = = : > s t : 8 0 8 0 Creating an Instance i f i f f i f l h u p c a m r m r r m r o o s a o p p o p o o p o a s e s n i o m o m m o m d t r s f _ r r r _ n w i h u p c t d t c c t i d = a o g o s a l o v v o o m r u s e s i o t j a a r t o e d r t r s e s e s t t e i e s a = n w n n o _ _ q m n . = = t h a o t v n s s u p v e i o m r d d e o ( n o o o s e d = i k k s r v v s s n t = = m . . t t e i . . , u p A p a a s r r e e = s a p o p p B b o n n e s i r i i y o n v v C r s C t _ _ t s . i i o n w l c c e e g r r n a o i l l l s = e o o f m r e o i i I T t n n i e d n a e e O r ( . . g , t d n n u " g g u ( _ t t e h e e r c d . ) o t t a o o i m s ( ( t n t m o t " " i f e p d " u p o i n o e ) s a n g v r l e s ( u t s r s r n w a C i a o t o m m r i n p e d o f o " " n i r ) ) ) g t u r P a a t t i c o h n e , d L A a p b i e C l l e i d e D n a t t , a R m e o q d u e e l s s t , a p i s , e x c e p t i o n s Creating a Task t } t e p a r x r s y c i k : e n _ ' " } # # # # ( p # p t s n l ] t t r ( p a a , A W m n a W i t e m b p e o o s e e n a c e e " " " ] i d k x t s ' l n c a s u e s , c c ( k = : s a o t s l u e a " ) " m l t c e s f r p n E { ' : e o r { } a f e t x 文 " r i n d a i s i c c 字 [ : " b i r x p o a e の { : u b f e . o n t p 検 " t " " " " e f n s c t 出 文 " e n m i v e t s . h i ' 字 # s a u n a a r y e A o , " f " m t p l c e p ) p t n , f : e a u u c n i i h 0 " b t e e t c = E e w 0 [ : l _ s s a x h f e t " s m l a c b e f " " y : e o l p e a n " s : p d d y i p s , c e [ e _ t i t o T " " a l c c i c r r r : " s s a l o y e u ] l i n e i " e " A f l e x n , , t p o e n a c g e i r d t s e x C . p t t l i l t e t o " i n i a : i , e p k s o c n u e k n r t t s e " _ t a c a * a y t l n R p p e a d e i e s q . , a s o u c u e r o t m t s e r a e p t a s m u " t a k b t . e : e ( d r d O t e % s a u a r s t t s i \ a p k v n . u _ e " t s d F p % o d e t r a c y e t ) p ) i a e n p m u o t d e d l a s t a h , a v e The following result is obtained. { ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' a a b c d g i j l m n o o p s s s s t u u s s u r i u d o a o a r v w r e o t u a p r s s g e m i ' b b d m g e n o g u a b r d l i i _ a e d : s e e e a r e j m r t s g a ' g g t t n e ' l ' ' n l r e e c u e e t : n n r e s _ 1 : s : : i a ' c n e s t t e e e a d i i 3 ' z p : t t _ ' ' _ d ' e e c _ o d , { : ' a ' _ _ s : : s _ h ' _ k d n ' ' ' ' ' 文 t : { i s t t d t : u e a ' : c c u v { , 字 i ' ' ' ' ' d i o ' o a t p r t : o o r a ' の o N f i l u u ' z r a ' r t p N d ' e N m u l l u 検 n o i d a r s : e a n , a e : o a : ' ' o p n ' i r 出 ' n r ' s l e ' g n g ' / n t : 2 n l t : d l ' : e s : t ' r N : e o e : / e e d e e ' a ' , , t _ : n o ' t ' l , d ' d ' , t : ' t : N _ 1 n a n 0 : a : d o _ , a , e h i o n , a ' m e , t a c d t d 0 t o ' n a m h e , N i N t a a e ' , t n h e m e t ' o o o e l t t : p ' t , e ' t : n n n t h e i : : t ' : p e ' e i o ' m 0 / p : : ' , , , m s : e , / 0 : ' n e t . l } / ' N / a . : N d o , / S a l k d 8 o a c l a k o a a 0 n t a o t a c m t 8 e e l c o m a u e 0 , t h a r u l r t / i o l u r h a i a m s h ' a o ' m p e t o , ' s } e i ( : s , t , ( / 2 8 t : 2 t 0 0 : 8 0 a 2 8 8 0 2 s 4 0 0 8 4 k , / 8 0 , s a 0 / / 1 p / a 1 1 0 i a p 0 3 , / p i , ' j i / } 3 o / u 3 , b l s , s a e 2 ? b r 2 2 t e s 2 , a l / , s s 1 5 k ? ' 5 0 _ t , 0 , i a , d s 4 = k 4 1 1 _ 1 , 3 i , ' d 9 , = 9 8 1 8 0 3 0 7 ' 7 7 } 9 3 , 8 , , t t z z i i n n f f o o = = t t z z u u t t c c ( ( ) ) ) ) , , Uploading Images Images of The Tale of Genji held by the University of Tokyo and Kyoto University are used. # d i ] c f # t # ( e m l o a r F f a i r H s I e u g e e k f s n g r r i i r e " " n i c r _ i c u d _ # # # c e e e m m e _ h h t m l e d m l w l a c t t s s g g t u t t _ a i a a i e t t o w a _ i _ p p . u r t t f g e w t g e , a n e n c o i o o = n r l p p i e n e a e n p _ t d h n m n n a n s s s l _ t _ t a r r e c e a s s B m : : e u _ w = q _ s e e n a d c t g e e y e i = / s r f i u f s s q t n i k o e . t m / l i l m a i p u _ s _ _ = r e = g [ h h = l l o l l b o e t c a s d f a s u u i e d i e i n s y h b t o r r i I i g g [ n s u e t s n s t p o l a w o e s O m g g ] . s l y = a e = e o e t n m q e ( a i i i a e s = c r ) t = s u l _ u _ r g n n m p . 7 l y a " e t s o u e f e e g g a p m D 5 i = s m h = a r s o s _ f f g e o a , e f k u t e F d l t r p u a a e n d t n i a _ l o a ( s _ o r c c _ d e a t l p d t r l t i . s n l e e u ( l R _ e i a i c e s h m g t s . . . r g s e f _ t p h s e e a e a e s c c l e q i o c a a e p , g t t . p o s t i u l b l , r c o i e ( u c l / : _ n e e j i t k n _ m _ i s o i s s i s s s e e / s p a u m ( n t p p m t t c n f t e a g r a ) t ( a a a e ( t t o h r e l g e " c c g a s . r e d s ) e n / e e e d , t m a e f : _ t " s s _ a - r t _ r u ) ) / / f o w s d e a r o r [ n n r f e k a s e m l - a a o s t p p s ) 1 k k m a n _ a o a p a ] a a _ e a " n r o m m u d e p , s s n U u u r i d i e i s R # r r l c . n e L a a ( t t c s g = M 1 1 i o r t F a a 9 9 m e a a n n 6 6 a s a t l d u / / g p t u s a y y e e e s e r l o o _ c _ e l l l u i d m t y o o r f a a u v v l y t n r s 5 5 ) a u n e - - ) c ( a t c c o t l a h h n a l t a a t s y B h r r e k y e / / n . t r r t i e n e e d s a s s t , I m o o y O e l l p v v e o a e e . b t / / j t m m e r a a c i i i t b n n u / / t % % e E E 3 3 % % 8 8 0 0 % % 8 8 E E % % E E 6 6 % % B B A A % % 9 9 0 0 % % E E 6 6 % % B B 0 0 % % 8 8 F F % % E E 7 7 % % 8 8 9 9 % % A A 9 9 % % E E 8 8 % % A A A A % % 9 9 E E % % E E 3 3 % % 8 8 0 0 % % 8 8 F F ( ( % % E E 6 4 % % 9 B D A % % B A 1 C % % E E 4 9 % % B 8 A 3 % % A B C D % % E E 5 5 % % A A 4 4 % % A A 7 7 % % E E 5 5 % % A A D D % % A A 6 6 % % E E 7 6 % % B 8 7 9 % % 8 8 F 0 % % E E 5 8 % % 9 9 0 4 % % 8 B 8 5 % ) E . 5 j % p 9 g B " % B 3 % E 6 % 9 B % B 8 % E 9 % A 4 % A 8 % E 6 % 8 9 % 8 0 % E 8 % 9 4 % B 5 ) . j p g " , Retrieving Label Information l d p a a r b t i e a n l , t s ( _ r d a e a p s t i p a _ o ) i n n s s e t a = n c l e a b = e l a s p _ i a s p . i L _ a i b n e s l t s a A n p c i e ( . a l p i i s _ t c ( l t i a e s n k t _ ) i d = t a s k . i d ) The following result is obtained. In particular, note the label id (16 here) and the id of the “score” attribute (also 16 here). { ' ' ' ' c n p r o e r e u x e s n t v u t ' i l ' : o t : u s N s ' 1 o ' : , n : e [ , N { o ' ' ' ' ' ' ' ' ' n a c h i n p s t t e t o a d a a u a y , t l s ' m r b s p r o _ : e e l k e i r p ' n a _ ' b ' a 1 : t b i : u : r 6 _ e d t e , ' i l ' ' e ' n 文 d s : a s # t 字 ' ' n ' f ' ' : : 1 y : f : , 3 ' 0 N [ , } [ 0 F o ] ] { f a n , } ' ' ' ' ' f l e d i i m n v ' s , e d n u a a , e f ' p t m l , a : u a e u u t b ' e l 1 _ l : s t 6 t e ' _ , y ' ' : v p : s a e c [ l ' T o ' u : r r ' e u e ] ' ' e ' } : t , , ] e , x ' t , ' , Registering Annotations Prepare a file like the following. The following is used. https://huggingface.co/spaces/nakamura196/yolov5-char [ ] { " " i o n u p t u p { } { } { } t u , , , " t : " : " " " " " " " " " " " " " " " " " " " " " " x y x y c c n x y x y c c n x y x y c c n h [ m m m m o l a m m m m o l a m m m m o l a t i i a a n a m i i a a n a m i i a a n a m t n n x x f s e n n x x f s e n n x x f s e p " " " " i s " " " " " i s " " " " " i s " s : : : : d " : : : : : d " : : : : : d " : : e : e : e : / 3 2 3 2 n " 3 3 3 4 n " 1 3 2 4 n " / 2 7 5 9 c 0 i 1 7 4 0 c 0 i 8 8 0 0 c 0 i h 1 2 0 4 e , t 9 3 7 4 e , t 3 2 7 6 e , t u . . . . " e . . . . " e . . . . " e g 3 1 4 3 : m 8 8 2 5 : m 5 4 5 6 : m g 3 7 5 3 " 2 8 3 7 " 3 3 6 4 " i 8 8 5 3 0 0 0 2 5 0 1 2 1 8 0 n 3 7 1 6 . 4 5 9 0 . 0 4 4 3 . g 4 4 0 7 8 9 2 1 7 8 8 6 7 1 8 f 8 1 8 9 5 5 3 0 3 5 2 4 7 5 4 a 3 4 6 1 3 6 6 1 2 2 1 5 6 4 7 c 8 5 4 9 3 0 8 5 4 3 5 9 6 2 0 e 8 5 2 9 2 5 1 6 2 8 3 9 1 9 8 . 7 1 6 2 3 5 6 2 2 6 3 6 1 7 2 c , , , , 2 , , , , 0 , , , , 3 o 2 5 7 / 1 7 6 s 2 4 5 p , , , a c e s / n a k a m u r a 1 9 6 / y o l o v 5 - c h a r / r e s o l v e / m a i n / % E 3 % 8 0 % 8 E % E 6 % B A % 9 0 % E 6 % B 0 % 8 F % E 7 % 8 9 % A 9 % E 8 % A A % 9 E % E 3 % 8 0 % 8 F ( % E 4 % B A % A C % E 9 % 8 3 % B D % E 5 % A 4 % A 7 % E 5 % A D % A 6 % E 6 % 8 9 % 8 0 % E 8 % 9 4 % B 5 ) . j p g " , Register the annotations. p i p i n s t a l l c v a t - s d k 0 As a result, the annotations are reflected as shown below. (Reference) Bulk Deletion of Tasks Bulk deletion of tasks can be done as follows. p i p i n s t a l l c v a t - s d k 1 Summary This article described how to manipulate CVAT data using Python. This only covers some of the available features, but I hope this serves as a useful reference.

Overview#

Setup#

Creating an Account#

Operations with Python#

Creating an Instance#

Creating a Task#

Uploading Images#

Retrieving Label Information#

Registering Annotations#

(Reference) Bulk Deletion of Tasks#

Summary#

Overview

Setup

Creating an Account

Operations with Python

Creating an Instance

Creating a Task

Uploading Images

Retrieving Label Information

Registering Annotations

(Reference) Bulk Deletion of Tasks

Summary