Skip to content
,
Skip to search
FreeAstro
The free world encyclopaedia for astronomy software.
Menu
Main page
Hardware compatibility
Recent changes
Projects:
MCMTII
Siril
Translate
|
Language statistics
|
Message group statistics
|
Export
|
Settings
Group
Main Page
MCMTII
SER
Siril
Siril:0.9.0
Siril:0.9.0 rc1
Siril:0.9.1
Siril:0.9.10
Siril:0.9.11
Siril:0.9.12
Siril:0.9.2
Siril:0.9.3
Siril:0.9.4
Siril:0.9.5
Siril:0.9.6
Siril:0.9.7
Siril:0.9.8
Siril:0.9.9
Siril:0.99.10
Siril:0.99.4
Siril:0.99.6
Siril:0.99.8
Siril:0.99.8.1
Siril:1.0.0
Siril:1.0.0rc1
Siril:1.0.0rc2
Siril:1.0.1
Siril:1.0.3
Siril:1.0.4
Siril:1.0.5
Siril:1.0.6
Siril:1.2.0
Siril:1.2.0-beta1
Siril:1.2.0-rc1
Siril:FITS orientation
Siril:install
Siril:Links
Siril:Manual
Siril:PSF
Siril:scripts
Siril:Tutorial import
Siril:Tutorial manual registration
Siril:Tutorial preprocessing
Siril:Tutorial sequence
Siril:Tutorial stacking
Language
aa - Afar
ab - Abkhazian
abs - Ambonese Malay
ace - Achinese
ady - Adyghe
ady-cyrl - Adyghe (Cyrillic script)
aeb - Tunisian Arabic
aeb-arab - Tunisian Arabic (Arabic script)
aeb-latn - Tunisian Arabic (Latin script)
af - Afrikaans
ak - Akan
aln - Gheg Albanian
alt - Southern Altai
am - Amharic
ami - Amis
an - Aragonese
ang - Old English
ann - Obolo
anp - Angika
ar - Arabic
arc - Aramaic
arn - Mapuche
arq - Algerian Arabic
ary - Moroccan Arabic
arz - Egyptian Arabic
as - Assamese
ase - American Sign Language
ast - Asturian
atj - Atikamekw
av - Avaric
avk - Kotava
awa - Awadhi
ay - Aymara
az - Azerbaijani
azb - South Azerbaijani
ba - Bashkir
ban - Balinese
ban-bali - Balinese (Balinese script)
bar - Bavarian
bbc - Batak Toba
bbc-latn - Batak Toba (Latin script)
bcc - Southern Balochi
bci - Baoulé
bcl - Central Bikol
be - Belarusian
be-tarask - Belarusian (Taraškievica orthography)
bg - Bulgarian
bgn - Western Balochi
bh - Bhojpuri
bho - Bhojpuri
bi - Bislama
bjn - Banjar
blk - Pa'O
bm - Bambara
bn - Bangla
bo - Tibetan
bpy - Bishnupriya
bqi - Bakhtiari
br - Breton
brh - Brahui
bs - Bosnian
btm - Batak Mandailing
bto - Iriga Bicolano
bug - Buginese
bxr - Russia Buriat
ca - Catalan
cbk-zam - Chavacano
cdo - Min Dong Chinese
ce - Chechen
ceb - Cebuano
ch - Chamorro
cho - Choctaw
chr - Cherokee
chy - Cheyenne
ckb - Central Kurdish
co - Corsican
cps - Capiznon
cr - Cree
crh - Crimean Tatar
crh-cyrl - Crimean Tatar (Cyrillic script)
crh-latn - Crimean Tatar (Latin script)
cs - Czech
csb - Kashubian
cu - Church Slavic
cv - Chuvash
cy - Welsh
da - Danish
dag - Dagbani
de - German
de-at - Austrian German
de-ch - Swiss High German
de-formal - German (formal address)
dga - Dagaare
din - Dinka
diq - Zazaki
dsb - Lower Sorbian
dtp - Central Dusun
dty - Doteli
dv - Divehi
dz - Dzongkha
ee - Ewe
egl - Emilian
el - Greek
eml - Emiliano-Romagnolo
en - English
en-ca - Canadian English
en-gb - British English
eo - Esperanto
es - Spanish
es-419 - Latin American Spanish
es-formal - Spanish (formal address)
et - Estonian
eu - Basque
ext - Extremaduran
fa - Persian
fat - Fanti
ff - Fula
fi - Finnish
fit - Tornedalen Finnish
fj - Fijian
fo - Faroese
fon - Fon
fr - French
frc - Cajun French
frp - Arpitan
frr - Northern Frisian
fur - Friulian
fy - Western Frisian
ga - Irish
gaa - Ga
gag - Gagauz
gan - Gan Chinese
gan-hans - Gan (Simplified)
gan-hant - Gan (Traditional)
gcr - Guianan Creole
gd - Scottish Gaelic
gl - Galician
gld - Nanai
glk - Gilaki
gn - Guarani
gom - Goan Konkani
gom-deva - Goan Konkani (Devanagari script)
gom-latn - Goan Konkani (Latin script)
gor - Gorontalo
got - Gothic
gpe - Ghanaian Pidgin
grc - Ancient Greek
gsw - Swiss German
gu - Gujarati
guc - Wayuu
gur - Frafra
guw - Gun
gv - Manx
ha - Hausa
hak - Hakka Chinese
haw - Hawaiian
he - Hebrew
hi - Hindi
hif - Fiji Hindi
hif-latn - Fiji Hindi (Latin script)
hil - Hiligaynon
ho - Hiri Motu
hr - Croatian
hrx - Hunsrik
hsb - Upper Sorbian
hsn - Xiang Chinese
ht - Haitian Creole
hu - Hungarian
hu-formal - Hungarian (formal address)
hy - Armenian
hyw - Western Armenian
hz - Herero
ia - Interlingua
id - Indonesian
ie - Interlingue
ig - Igbo
igl - Igala
ii - Sichuan Yi
ik - Inupiaq
ike-cans - Eastern Canadian (Aboriginal syllabics)
ike-latn - Eastern Canadian (Latin script)
ilo - Iloko
inh - Ingush
io - Ido
is - Icelandic
it - Italian
iu - Inuktitut
ja - Japanese
jam - Jamaican Creole English
jbo - Lojban
jut - Jutish
jv - Javanese
ka - Georgian
kaa - Kara-Kalpak
kab - Kabyle
kbd - Kabardian
kbd-cyrl - Kabardian (Cyrillic script)
kbp - Kabiye
kcg - Tyap
kea - Kabuverdianu
kg - Kongo
khw - Khowar
ki - Kikuyu
kiu - Kirmanjki
kj - Kuanyama
kjh - Khakas
kjp - Eastern Pwo
kk - Kazakh
kk-arab - Kazakh (Arabic script)
kk-cn - Kazakh (China)
kk-cyrl - Kazakh (Cyrillic script)
kk-kz - Kazakh (Kazakhstan)
kk-latn - Kazakh (Latin script)
kk-tr - Kazakh (Turkey)
kl - Kalaallisut
km - Khmer
kn - Kannada
ko - Korean
ko-kp - Korean (North Korea)
koi - Komi-Permyak
kr - Kanuri
krc - Karachay-Balkar
kri - Krio
krj - Kinaray-a
krl - Karelian
ks - Kashmiri
ks-arab - Kashmiri (Arabic script)
ks-deva - Kashmiri (Devanagari script)
ksh - Colognian
ksw - S'gaw Karen
ku - Kurdish
ku-arab - Kurdish (Arabic script)
ku-latn - Kurdish (Latin script)
kum - Kumyk
kus - Kʋsaal
kv - Komi
kw - Cornish
ky - Kyrgyz
la - Latin
lad - Ladino
lb - Luxembourgish
lbe - Lak
lez - Lezghian
lfn - Lingua Franca Nova
lg - Ganda
li - Limburgish
lij - Ligurian
liv - Livonian
lki - Laki
lld - Ladin
lmo - Lombard
ln - Lingala
lo - Lao
loz - Lozi
lrc - Northern Luri
lt - Lithuanian
ltg - Latgalian
lus - Mizo
luz - Southern Luri
lv - Latvian
lzh - Literary Chinese
lzz - Laz
mad - Madurese
mag - Magahi
mai - Maithili
map-bms - Basa Banyumasan
mdf - Moksha
mg - Malagasy
mh - Marshallese
mhr - Eastern Mari
mi - Māori
min - Minangkabau
mk - Macedonian
ml - Malayalam
mn - Mongolian
mni - Manipuri
mnw - Mon
mo - Moldovan
mos - Mossi
mr - Marathi
mrh - Mara
mrj - Western Mari
ms - Malay
ms-arab - Malay (Jawi script)
mt - Maltese
mus - Muscogee
mwl - Mirandese
my - Burmese
myv - Erzya
mzn - Mazanderani
na - Nauru
nah - Nāhuatl
nan - Min Nan Chinese
nap - Neapolitan
nb - Norwegian Bokmål
nds - Low German
nds-nl - Low Saxon
ne - Nepali
new - Newari
ng - Ndonga
nia - Nias
niu - Niuean
nl - Dutch
nl-informal - Dutch (informal address)
nmz - Nawdm
nn - Norwegian Nynorsk
no - Norwegian
nod - Northern Thai
nog - Nogai
nov - Novial
nqo - N’Ko
nrm - Norman
nso - Northern Sotho
nv - Navajo
ny - Nyanja
nyn - Nyankole
nys - Nyungar
oc - Occitan
ojb - Northwestern Ojibwa
olo - Livvi-Karelian
om - Oromo
or - Odia
os - Ossetic
pa - Punjabi
pag - Pangasinan
pam - Pampanga
pap - Papiamento
pcd - Picard
pcm - Nigerian Pidgin
pdc - Pennsylvania German
pdt - Plautdietsch
pfl - Palatine German
pi - Pali
pih - Norfuk / Pitkern
pl - Polish
pms - Piedmontese
pnb - Western Punjabi
pnt - Pontic
prg - Prussian
ps - Pashto
pt - Portuguese
pt-br - Brazilian Portuguese
pwn - Paiwan
qqq - Message documentation
qu - Quechua
qug - Chimborazo Highland Quichua
rgn - Romagnol
rif - Riffian
rki - Arakanese
rm - Romansh
rmc - Carpathian Romani
rmy - Vlax Romani
rn - Rundi
ro - Romanian
roa-tara - Tarantino
rsk - Pannonian Rusyn
ru - Russian
rue - Rusyn
rup - Aromanian
ruq - Megleno-Romanian
ruq-cyrl - Megleno-Romanian (Cyrillic script)
ruq-latn - Megleno-Romanian (Latin script)
rw - Kinyarwanda
ryu - Okinawan
sa - Sanskrit
sah - Yakut
sat - Santali
sc - Sardinian
scn - Sicilian
sco - Scots
sd - Sindhi
sdc - Sassarese Sardinian
sdh - Southern Kurdish
se - Northern Sami
se-fi - Northern Sami (Finland)
se-no - Northern Sami (Norway)
se-se - Northern Sami (Sweden)
sei - Seri
ses - Koyraboro Senni
sg - Sango
sgs - Samogitian
sh - Serbo-Croatian
sh-cyrl - Serbo-Croatian (Cyrillic script)
sh-latn - Serbo-Croatian (Latin script)
shi - Tachelhit
shi-latn - Tachelhit (Latin script)
shi-tfng - Tachelhit (Tifinagh script)
shn - Shan
shy - Shawiya
shy-latn - Shawiya (Latin script)
si - Sinhala
simple - Simple English
sjd - Kildin Sami
sje - Pite Sami
sk - Slovak
skr - Saraiki
skr-arab - Saraiki (Arabic script)
sl - Slovenian
sli - Lower Silesian
sm - Samoan
sma - Southern Sami
smn - Inari Sami
sms - Skolt Sami
sn - Shona
so - Somali
sq - Albanian
sr - Serbian
sr-ec - Serbian (Cyrillic script)
sr-el - Serbian (Latin script)
srn - Sranan Tongo
sro - Campidanese Sardinian
ss - Swati
st - Southern Sotho
stq - Saterland Frisian
sty - Siberian Tatar
su - Sundanese
sv - Swedish
sw - Swahili
syl - Sylheti
szl - Silesian
szy - Sakizaya
ta - Tamil
tay - Tayal
tcy - Tulu
tdd - Tai Nuea
te - Telugu
tet - Tetum
tg - Tajik
tg-cyrl - Tajik (Cyrillic script)
tg-latn - Tajik (Latin script)
th - Thai
ti - Tigrinya
tk - Turkmen
tl - Tagalog
tly - Talysh
tly-cyrl - Talysh (Cyrillic script)
tn - Tswana
to - Tongan
tok - Toki Pona
tpi - Tok Pisin
tr - Turkish
tru - Turoyo
trv - Taroko
ts - Tsonga
tt - Tatar
tt-cyrl - Tatar (Cyrillic script)
tt-latn - Tatar (Latin script)
tum - Tumbuka
tw - Twi
ty - Tahitian
tyv - Tuvinian
tzm - Central Atlas Tamazight
udm - Udmurt
ug - Uyghur
ug-arab - Uyghur (Arabic script)
ug-latn - Uyghur (Latin script)
uk - Ukrainian
ur - Urdu
uz - Uzbek
uz-cyrl - Uzbek (Cyrillic script)
uz-latn - Uzbek (Latin script)
ve - Venda
vec - Venetian
vep - Veps
vi - Vietnamese
vls - West Flemish
vmf - Main-Franconian
vmw - Makhuwa
vo - Volapük
vot - Votic
vro - Võro
wa - Walloon
wal - Wolaytta
war - Waray
wls - Wallisian
wo - Wolof
wuu - Wu Chinese
xal - Kalmyk
xh - Xhosa
xmf - Mingrelian
xsy - Saisiyat
yi - Yiddish
yo - Yoruba
yrl - Nheengatu
yue - Cantonese
za - Zhuang
zea - Zeelandic
zgh - Standard Moroccan Tamazight
zh - Chinese
zh-cn - Chinese (China)
zh-hans - Simplified Chinese
zh-hant - Traditional Chinese
zh-hk - Chinese (Hong Kong)
zh-mo - Chinese (Macau)
zh-my - Chinese (Malaysia)
zh-sg - Chinese (Singapore)
zh-tw - Chinese (Taiwan)
zu - Zulu
Format
Export for off-line translation
Export in native format
Export in CSV format
Fetch
{{DISPLAYTITLE:Siril:Orientation des FITS}}<languages /> <span id="Orientation_of_FITS_images"></span> =Orientation des images FITS= La norme FITS est un conteneur qui décrit comment stocker les données et métadonnées de l'image. Des outils professionnels, dès les débuts du format FITS, comme [https://sites.google.com/cfa.harvard.edu/saoimageds9 ds9] (Harvard Smithsonian Center for Astrophysics), [https://heasarc.gsfc.nasa.gov/docs/software/ftools/fv/ fv] ( FITS viewer de la NASA), stockent les images '''de bas en haut'''. On pourrait être tenté de dire que cela n'a pas vraiment d'importance, mais lorsque le dématriçage ou l'astrométrie sont impliqués, des problèmes surviennent. Par exemple, le motif Bayer RGGB habituel devient GBRG si l'image est à l'envers. De nos jours, malgré cela, la plupart des pilotes de caméra écrivent des données dans l'ordre descendant (de haut en bas) et nous devons y faire face. Pour ces raisons, nous avons récemment introduit, avec P. Chevalley de [https://www.ap-i.net/ccdciel/en/start CCDCiel], un '''nouveau mot clé FITS'''. Nous encourageons tous les producteurs de données, les développeurs INDI et ASCOM, à l'utiliser afin de faciliter les choses pour tout le monde. '''Ce mot clé est''' <tt>ROWORDER</tt> de type <tt>TSTRING</tt>. Il peut prendre deux valeurs : <tt>BOTTOM-UP</tt> et <tt>TOP-DOWN</tt>. [[Siril]] lira et affichera toujours les images dans l'ordre ascendant (de bas en haut), mais si l'information '''top-down''' est spécifiée dans le mot-clé, alors Siril dématricera l'image avec le motif de Bayer correspondant. Pourquoi les logiciels écrivent-ils les images de façon descendante ? La raison est la suivante : [https://stackoverflow.com/a/8347036 la logique mathématique]. Aussi, les [https://ui.adsabs.harvard.edu/abs/2002A%26A...395.1061G/abstract spécifications du format FITS] disent, en anglais : ''5.1. Image display conventions'' ''It is very helpful to adopt a convention for the display of images transferred via the FITS format. Many of the current image processing systems have converged upon such a convention. Therefore, we recommend that FITS writers order the pixels so that the first pixel in the FITS file (for each image plane) be the one that would be displayed in the lower-left corner (with the first axis increasing to the right and the second axis increasing upwards) by the imaging system of the FITS writer. This convention is clearly helpful in the absence of a description of the world coordinates. It does not preclude a program from looking at the axis descriptions and overriding this convention, or preclude the user from requesting a different display. This convention also does not excuse FITS writers from providing complete and correct descriptions of the image coordinates, allowing the user to determine the meaning of the image. The ordering of the image for display is simply a convention of convenience, whereas the coordinates of the pixels are part of the physics of the observation.'' ==Logiciels utilisant ce mot clé== * Siril (depuis la version 0.99.4) * CCDCiel (depuis la version 0.9.72) * Indi (depuis [https://github.com/indilib/indi/commit/176173ed51ec2086657eb8881c67b335fc570b34 Juil. 2020]) * KStars (depuis la version 3.4.3) * SharpCap (depuis la version 3.3) * FireCapture (depuis la version 2.7) * N.I.N.A (depuis la version 1.10) * MaxImDL (depuis la version 6.23) * INDIGO (depuis [https://github.com/indigo-astronomy/indigo/commit/7ae5cbd10c06e705a52398d402d8800dd92bee57 Juil. 2020]) * PixInsight (depuis la version 1.8.8-6) * ASTAP (depuis la version ß0.9.391) * APT (depuis la version 3.86.3) * AstroDMx Capture (depuis la version 0.80) * Astroart (depuis la version 8.0) ==Récupération de la matrice Bayer== L'ordre des lignes de l'image modifie la façon dont la matrice Bayer doit être lue, mais il existe également deux mots-clés d'en-tête FITS facultatifs qui ont un effet sur cela : <tt>XBAYROFF</tt> et <tt>YBAYROFF</tt>. Ils spécifient un décalage par rapport à la matrice Bayer, pour commencer à la lire sur la première colonne ou la première ligne. Pour aider les développeurs à intégrer les mots-clés <tt>ROWORDER</tt>, <tt>XBAYROFF</tt> et <tt>YBAYROFF</tt> dans leur logiciel, des images de test ont été créées par Han Kleijn de [https://www.hnsky.org/hnsky.org], un pour chaque combinaison des trois mots-clés. Téléchargez-les ici : [[File:Bayer_test_pattern_v6.tar.gz]].