Rotation d'image...

FiLH a exposé ceci :

Oui, mais alors pourquoi les deux images sont STRICTEMENT
équivalentes ? le fichier original a maigrit de 12% !!!

Tags en moins ?

Viré les exifs ?
Le profil ICC ?

Infos EXIF : tjrs présentes.
Tags et Profil ICC : je doute que mon patit APN enrichisse les fichiers avec
ces infos...
la question reste entière.
--
Cordialement,
Alf92

Cela est dû au principe de l'algorithme de
"compression JPEG" qui travaille avec des blocs de 8x8 pixels.

Cela ne concerne que les fichiers Jpeg donc. Merci de l'info.

--
Vincent Becker
Photographie et appareils anciens - Photography and classic cameras
<URL:http://www.lumieresenboite.com>
Merci de passer par mon site pour les réponses par courriel

FiLH a exposé ceci :

"Alf92" <alf92[NO-SPAM]@freesurf.fr> wrote:

FiLH a exposé ceci :

Oui, mais alors pourquoi les deux images sont STRICTEMENT
équivalentes ? le fichier original a maigrit de 12% !!!

Tags en moins ?

Viré les exifs ?
Le profil ICC ?

Infos EXIF : tjrs présentes.
Tags et Profil ICC : je doute que mon patit APN enrichisse les
fichiers avec ces infos...
la question reste entière.

Tu peux me mailer les deux stp ?

FiLH

elles sont dans ta BAL.
conclusion ?
--
Cordialement,
Alf92

"Alf92" <alf92[NO-SPAM]@freesurf.fr> wrote:

FiLH a exposé ceci :

"Alf92" <alf92[NO-SPAM]@freesurf.fr> wrote:

FiLH a exposé ceci :

Oui, mais alors pourquoi les deux images sont STRICTEMENT
équivalentes ? le fichier original a maigrit de 12% !!!

Infos EXIF : tjrs présentes.
Tags et Profil ICC : je doute que mon patit APN enrichisse les
fichiers avec ces infos...
la question reste entière.

Tu peux me mailer les deux stp ?

FiLH

elles sont dans ta BAL.
conclusion ?

Ben la différence est à quelques octets près dans un champ appelé
profile-app1 par identify (cf infos ci-dessous)

APP1 est un marqueur pour les fichiers jfif pour inclure des infos.
Par contre j'ai pas trop d'infos sur le contenu de ce marquer dans le
cas de tes images.

FiLH

identify -verbose *
Image: image1-retourne_avec_XP.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Geometry: 1600x1200
Class: DirectClass
Type: true color
Depth: 8 bits-per-pixel component
Colors: 89596
Profile-APP1: 5779 bytes
Filesize: 373.3k
Interlace: None
Background Color: grey100
Border Color: #DFDFDF
Matte Color: grey74
Dispose: Undefined
Iterations: 0
Compression: JPEG
signature:
d96051bb2d3d519aecca6f56f7b3c238d0940e293b3be6997936a084ad010db4
Tainted: False
User Time: 0.3u
Elapsed Time: 0:01
Image: image1.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Geometry: 1600x1200
Class: DirectClass
Type: true color
Depth: 8 bits-per-pixel component
Colors: 89596
Profile-APP1: 55363 bytes
Filesize: 421.8k
Interlace: None
Background Color: grey100
Border Color: #DFDFDF
Matte Color: grey74
Dispose: Undefined
Iterations: 0
Scene: 1
Compression: JPEG
signature:
d96051bb2d3d519aecca6f56f7b3c238d0940e293b3be6997936a084ad010db4
Tainted: False
User Time: 0.2u
Elapsed Time: 0:01



--
Le fondement du constat bougeois, c'est le bon sens, c'est-à-dire
une vérité qui s'arrête sur l'ordre arbitraire de celui qui la parle.
Rolland Barthes.
http://www.filh.org

FiLH <filh@filh.orgie> wrote:

Tu peux me mailer les deux stp ?

FiLH

elles sont dans ta BAL.
conclusion ?

Ben la différence est à quelques octets près dans un champ appelé
profile-app1 par identify (cf infos ci-dessous)

APP1 est un marqueur pour les fichiers jfif pour inclure des infos.
Par contre j'ai pas trop d'infos sur le contenu de ce marquer dans le
cas de tes images.

Bon commeje suis tétu, je me suis rendu compte que APP1 c'est les
données exif. Donc j'ai trouvé un prog qui lit les données exif et j'ai
trouvé jhead
http://www.sentex.net/~mwandel/jhead/

Bon c'est pas du clicodrome, ça tombe bien ça permet de faire du copier
coller avec les news.

Sauf que... je retombe sur un pb à la con la différence se situe dans un
champ nommé « Non settings part or Exif header » ce qui nous avance bien
pour savoir de quoi il s'agit hein !

Bon je te donnes le résulat des commandes pour voir en dessous...

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" " " " " " " " " " " " " " " " " " " " " " " " " " " " " """
" " " " "F"l"a"s"h"P"i"x"V"e"r"s"i"o"n" "=" """0"1"0"0"""
" " " " "C"o"l"o"r"S"p"a"c"e" "=" "1"
" " " " "E"x"i"f"I"m"a"g"e"W"i"d"t"h" "=" "1"6"0"0"
" " " " "E"x"i"f"I"m"a"g"e"L"e"n"g"t"h" "=" "1"2"0"0"
" " " " "I"n"t"e"r"o"p"e"r"a"b"i"l"i"t"y"O"f"f"s"e"t" "=" "1"1"1"8"
"D"i"r"e"c"t"o"r"y" "w"i"t"h" "2" "e"n"t"r"i"e"s"
" " "U"n"k"n"o"w"n" "T"a"g" "0"0"0"1" "V"a"l"u"e" "=" """R"9"8"?"""
" " "U"n"k"n"o"w"n" "T"a"g" "0"0"0"2" "V"a"l"u"e" "=" """0"1"0"0"""
" " " " "F"i"l"e"S"o"u"r"c"e" "=" """?"""
" " " " "S"c"e"n"e"T"y"p"e" "=" """?"""
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"1" "V"a"l"u"e" "=" "1"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"2" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"3" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"4" "V"a"l"u"e" "=" "0"/"1"0"0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"5" "V"a"l"u"e" "=" "6"0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"6" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"7" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"8" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"9" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"a" "V"a"l"u"e" "=" "0"
" " "U"n"k"n"o"w"n" "T"a"g" "a"4"0"c" "V"a"l"u"e" "=" "2"
" " "U"n"k"n"o"w"n" "T"a"g" "c"4"a"5" "V"a"l"u"e" "="
"""P"r"i"n"t"I"M"?"0"2"5"0"?"""
"D"i"r"e"c"t"o"r"y" "w"i"t"h" "6" "e"n"t"r"i"e"s"
" " " " "C"o"m"p"r"e"s"s"i"o"n" "=" "6"
" " " " "X"R"e"s"o"l"u"t"i"o"n" "=" "7"2"/"1"
" " " " "Y"R"e"s"o"l"u"t"i"o"n" "=" "7"2"/"1"
" " " " "R"e"s"o"l"u"t"i"o"n"U"n"i"t" "=" "2"
" " " " "T"h"u"m"b"n"a"i"l"O"f"f"s"e"t" "=" "4"0"8"4"
" " " " "T"h"u"m"b"n"a"i"l"L"e"n"g"t"h" "=" "3"9"8"6"
"T"h"u"m"b"n"a"i"l" "s"i"z"e":" "3"9"8"6" "b"y"t"e"s"
"N"o"n" "s"e"t"t"i"n"g"s" "p"a"r"t" "o"f" "E"x"i"f" "h"e"a"d"e"r":"
"5"3"4"4"9" "b"y"t"e"s"
"J"p"e"g" "s"e"c"t"i"o"n" "m"a"r"k"e"r" "0"x"d"b" "s"i"z"e" "1"9"7"
"J"p"e"g" "s"e"c"t"i"o"n" "m"a"r"k"e"r" "0"x"c"4" "s"i"z"e" "4"1"8"
"J"P"E"G" "i"m"a"g"e" "i"s" "1"6"0"0"w" "*" "1"2"0"0"h"," "3"
"c"o"l"o"r" "c"o"m"p"o"n"e"n"t"s"," "8" "b"i"t"s" "p"e"r" "s"a"m"p"l"e"
"F"i"l"e" "n"a"m"e" " " " ":" "A"l"f"/"i"m"a"g"e"1"."j"p"g"
"F"i"l"e" "s"i"z"e" " " " ":" "4"3"1"8"7"7" "b"y"t"e"s"
"F"i"l"e" "d"a"t"e" " " " ":" "2"0"0"4":"0"5":"0"2" "1"5":"2"7":"5"8"
"C"a"m"e"r"a" "m"a"k"e" " ":" "M"i"n"o"l"t"a" "C"o"."," "L"t"d"."
"C"a"m"e"r"a" "m"o"d"e"l" ":" "D"i"M"A"G"E" "X"2"0"
"D"a"t"e"/"T"i"m"e" " " " ":" "2"0"0"3":"0"1":"0"1" "0"0":"0"0":"0"0"
"R"e"s"o"l"u"t"i"o"n" " " ":" "1"6"0"0" "x" "1"2"0"0"
"F"l"a"s"h" "u"s"e"d" " " ":" "Y"e"s"
"F"o"c"a"l" "l"e"n"g"t"h" ":" " "7"."8"m"m"
"E"x"p"o"s"u"r"e" "t"i"m"e":" "0"."0"1"7" "s" " "("1"/"6"0")"
"A"p"e"r"t"u"r"e" " " " " ":" "f"/"3"."2"
"I"S"O" "e"q"u"i"v"." " " ":" "2"0"0"
"M"e"t"e"r"i"n"g" "M"o"d"e":" "m"a"t"r"i"x"
"E"x"p"o"s"u"r"e" " " " " ":" "p"r"o"g"r"a"m" "("a"u"t"o")"
"J"p"e"g" "p"r"o"c"e"s"s" ":" "B"a"s"e"l"i"n"e



--
Le fondement du constat bougeois, c'est le bon sens, c'est-à-dire
une vérité qui s'arrête sur l'ordre arbitraire de celui qui la parle.
Rolland Barthes.
http://www.filh.org

Hello, FiLH a écrit dans <news:1gd640d.c6bp909b5t6lN%filh@filh.orgie>

Bon je te donnes le résulat des commandes pour voir en dessous...

"f"i"l"h"@"H"a"l"u":"~"/"D"o"c"u"m"e"n"t"s"$" "."/"j"h"e"a"d" "-"v"

C'est très laid. C'est toujours ainsi, quand ça sort du X ?
--
Pierre.
Mes photographies : <URL:http://perso.wanadoo.fr/pierre.pallier>
La FAQ de frp : <URL:http://frp.parisv.com>
Les news avec 40tude Dialog : http://perso.wanadoo.fr/pierre.pallier/Dialog

Pierre Pallier <mon_reply_to@nest-pas.invalid> wrote:

Hello, FiLH a écrit dans <news:1gd640d.c6bp909b5t6lN%filh@filh.orgie>

Bon je te donnes le résulat des commandes pour voir en dessous...

"f"i"l"h"@"H"a"l"u":"~"/"D"o"c"u"m"e"n"t"s"$" "."/"j"h"e"a"d" "-"v"

C'est très laid. C'est toujours ainsi, quand ça sort du X ?

Non c'est les newsreader qui chie

FiLH

--
Le fondement du constat bougeois, c'est le bon sens, c'est-à-dire
une vérité qui s'arrête sur l'ordre arbitraire de celui qui la parle.
Rolland Barthes.
http://www.filh.org

FiLH a exposé ceci :

Hello, FiLH a écrit dans <news:1gd640d.c6bp909b5t6lN%filh@filh.orgie>

Bon je te donnes le résulat des commandes pour voir en dessous...

"f"i"l"h"@"H"a"l"u":"~"/"D"o"c"u"m"e"n"t"s"$" "."/"j"h"e"a"d" "-"v"

C'est très laid. C'est toujours ainsi, quand ça sort du X ?

Non c'est les newsreader qui chie

FiLH

Salut, me revoilà.
bon on n'est pas bien avancé pour savoir d'où vient ce delta de 12% de poids
...
--
Cordialement,
Alf92

"Alf92" <alf92[NO-SPAM]@freesurf.fr> wrote:

FiLH a exposé ceci :

Hello, FiLH a écrit dans <news:1gd640d.c6bp909b5t6lN%filh@filh.orgie>

Bon je te donnes le résulat des commandes pour voir en dessous...

"f"i"l"h"@"H"a"l"u":"~"/"D"o"c"u"m"e"n"t"s"$" "."/"j"h"e"a"d" "-"v"

C'est très laid. C'est toujours ainsi, quand ça sort du X ?

Non c'est les newsreader qui chie

FiLH

Salut, me revoilà.
bon on n'est pas bien avancé pour savoir d'où vient ce delta de 12% de poids
...

Ben si c'est des données exif issue de ton boitier qui ne sont pas
reprises par XP.

C'est pas mal non comme conclusion. Cela veut dire que à priori la
partie donnée pure jpg n'est pas vraiment touchée.

Non ?

FiLH

--
Le fondement du constat bougeois, c'est le bon sens, c'est-à-dire
une vérité qui s'arrête sur l'ordre arbitraire de celui qui la parle.
Rolland Barthes.
http://www.filh.org

FiLH a exposé ceci :

Salut, me revoilà.
bon on n'est pas bien avancé pour savoir d'où vient ce delta de 12%
de poids ...

Ben si c'est des données exif issue de ton boitier qui ne sont pas
reprises par XP.

C'est pas mal non comme conclusion. Cela veut dire que à priori la
partie donnée pure jpg n'est pas vraiment touchée.

Non ?

50Ko sur 420 pour le données EXIF...
c'est beaucoup...
--
Cordialement,
Alf92