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Manual ARRI Projection HDTV

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  • ARRI Projection HDTV - page 1

    ALICE COLOR MANAGEMENT Instruction Manual As of: April 2003 A LL ARTWORK , PICTURES AND TEXTS ARE COVERED BY OUR COPY - RIGHT . T HEY MUST NOT BE COPIED FOR REPROD UCTI ON ( E . G . ON CD-R OM D ISKS OR I NT ERNE T - SI TES ) OR USED IN THEIR ENTIRE FORM OR IN EXCERPTS WITHOUT OUR PREVIOUS WRITTEN AGREEMENT . I F YOU ARE DOWNLOADING PDF- FILES FROM ...

  • ARRI Projection HDTV - page 2

    2 Contents Contents Sa fe t y I ns t ru ct i on s .. .. . . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . . 3 1 AL IC E A RR IL A SE R I nt er a ct iv e C on  gu ra t io n E di to r .. .. . . .. .. . 5 2 Op er a t io n.. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. . 7 ...

  • ARRI Projection HDTV - page 3

    3 Contents Safety Instr uctions Caution: This manual is an addendum to the existing ARRILASER instruction manual. Please make sure to read the ARRILASER manual prior to continuing with this manual! 5 Co lo r Ma na g em en t f or V i d e o L oo k . . . .. .. . .. .. . .. .. . .. 28 5. 1 Op er a t io n f ro m A LI CE .. . . . .. .. . .. .. . .. .. . ...

  • ARRI Projection HDTV - page 4

    4 Introduction 1 ...

  • ARRI Projection HDTV - page 5

    5 1 ALICE A R R I L A S E R I n t e r a c t i v e C o n f i g u r a t i o n E d i t o r The ALICE offers the fastest, easiest and safest way to generate a new image processing configuration file and gives visual control over the whole image process from the raw input sequence to the final images positioned on the film. General input parameters like ...

  • ARRI Projection HDTV - page 6

    6 film view • pr oc es s ed view • original view • timeline • • projectable area • home button viewer area • • configuration area • pixel info • display settings Operation 2 ...

  • ARRI Projection HDTV - page 7

    7 2 Operation T o start ALICE click the ALICE Button beneath the image processing configuration list in the input tab of ALGUI. An y p res e le c te d im a g e p ro c e ss i n g f il e wi l l b e a p p li e d i n A L IC E , a s l on g a s i t i s c o m pa t i b l e wi t h A L I CE ’ s c o n fi g u ra t i o n. If no t, o r i f n o f i l e i s s e ...

  • ARRI Projection HDTV - page 8

    8 Timeline • T o c h a ng e t he d i s p l ay e d f r a me r a n g e , e n t e r th e s t a r t / e n d fr a me in th e c o r re s p on d in g te x t f i el d at t he be g i nn i n g and end of the timeline  photo . The ‘ cur ‘ field shows  photo the actual displayed frame number . T yping a par ticular number in that field will show th ...

  • ARRI Projection HDTV - page 9

    9 Projectable Area • By ch oos i ng an o ut p u t f or m at i n t he ‘ pr o j ec t ab l e a r e a ‘  photo , internally the corresponding ‘projector mask’ is selected. The ‘projector mask‘, the ‘save title area’ or both together can be activated. Additionally the reser ved region for the soundtrack and the frame line can be dis ...

  • ARRI Projection HDTV - page 10

    10 input format • ouput format • calibration • • crop area • CMS • Sharpen • Deinterlace Operation 2.2. ...

  • ARRI Projection HDTV - page 11

    11 2.2 Configuration Area Th i s cha p te r e x p la i n s a ll a va i l ab l e A L IC E no d es a nd t he i r pa r am ete r s i n a sy s t em a ti c wa y ac c or d i ng t o t he s ta n d ar d GUI configuration. It is mainly intended as a reference. In this window a configuration file for the image processing can be build. Note : This configuration ...

  • ARRI Projection HDTV - page 12

    12 Output Format • The determination of the ‘ output format ’  photo is a two-stage selection procedure: F i rs t th e d es i r e d p ro j e c t i o n a s p e c t r a t i o m us t b e c ho o s e n (i.e.: 1:2,35 CS means squeezed for projection with ci n em asc o pe le n s es ) . A l l a v ai l a b le g e o m e tr i e s f o r t h i s a sp e ...

  • ARRI Projection HDTV - page 13

    13 Crop Area • W i th th e c r op n od e a ‘ cr o p a r e a ‘  p ho t o can be specified by t h e x / y- s i z e a n d t h e o r i g i n o f t h e c r o p b o x i n r e l a t i o n t o t h e o r ig i n al im a g e. By se lec t in g a p ro j e ct i on a sp e c t r at i o ( e . g. 1. 6 6 ) i n t h e ‘ o u t p u t f o r m a t ’ n o d e t ...

  • ARRI Projection HDTV - page 14

    14 Crop box handling with the aspect unlocked: If the image should not be cropped in order to get the se l ec ted ou t pu t fo r ma t t h e ´ l o ck as p e ct ´ bu t to n  p ho t o can be switched off. This mode allows to only downsize the aspect ratio starting from the chosen ratio in the ‘ output format ’ node. The result is a horizontal ...

  • ARRI Projection HDTV - page 15

    15 Right mouse button: T o r e se t th e cr o p b o x t o i t s d e fa u lt , t o m a xi miz e o r c e n te r th e c rop bo x u s e t h e r i gh t mo u s e b ut t o n, w he n t h e m o u se is located in the image area. Operation 2.2. ...

  • ARRI Projection HDTV - page 16

    16 Deinterlace The ‘ deinterlace ‘  p ho t o node enables the merging of two fields of video originated frames. There are no arguments required. • For quick comparison between ‘ deinterlace ’ on/off toggle key D in the processed view mode. Pushing down the key will disable the e f fe c t o n t he i m a g e a n d t h e c o lo r o f t h ...

  • ARRI Projection HDTV - page 17

    17 CMS The Color Management system (‘ CMS ‘  p ho t o ) node is us ed t o a pp l y h i g h q ua l i ty p ro f il e s f o r s t an d a rd d ev i ce s such as Sony HD Monitor and Kodak Vision print stock pr o je cte d b y a x en o n l a mp i n o r de r t o br i n g t he c ol o r s o f th e f ilm ou t pu t close to what can be seen on the monit ...

  • ARRI Projection HDTV - page 18

    18 3 The File Menu ‘ Preferences ’ has three tabs: • Appearance : to adjust the background, perforation, film, soundtrack and frame line color in the film view . T ransparency of soundtrack and frame line can also be adjusted. The general ALICE font can be changed as well. • Color Management : The profile for your workstation monitor can be ...

  • ARRI Projection HDTV - page 19

    19 • ‘ Select sequence ’: The file browser opens and the sequence can be selected in the display . This change will also be returned to the ALGUI, if ALICE is left with saving. • ‘ Save configuration as… ’ will open the file menu. The actual image processing configuration can be saved without leaving ALICE. • ‘ Save job as… ’ ...

  • ARRI Projection HDTV - page 20

    20 4 Configuration 4.1 Naming Conventions in ALICE O n s t a rt u p, A L IC E an a l y ze s a l l co n f i g u r at i o n f i le s , d i r ec t o r i e s and environment variables relevant for recording. In addition to the information stored in the files, there are some conventions for naming files. These are relevant for ALICE only: Cinemascope ge ...

  • ARRI Projection HDTV - page 21

    21 Inter Positive fullap geometries Geometr y files named ‘ ipfullap*.cfg ‘ are used as fullap geometries for intermed positive recording. For each supported pitch there must be one (and not more than one) ip fullap geometr y file. ALICE is installed with ip fullap geometries for all supported pitches. Example: Format: 2Kipfullap xSize: 2048 yS ...

  • ARRI Projection HDTV - page 22

    22 4.2 Input Format File Specification Location of input format file The fully qualified path and filename of the input format file is specified in the environment variable ALICE_ INPUT_FORMA T_FILE. The suggested location is ‘ c: al al i ce co n f ig a li c eI n p ut F o rm a ts . c fg ‘. Syntax of input format file The syntax of the in ...

  • ARRI Projection HDTV - page 23

    23 ################################################ # AR RI L AS ER AL IC E I np ut Fo rm at Co n g ur at io n F il e # # ARRI Film & TV # ################################################ # examples of entries for images scanned from # cinemascope lm, thus having a pixel aspect # of 1:2 : imageformat: 2k_cinemascope xSize : 2048 ySize : 1 ...

  • ARRI Projection HDTV - page 24

    24 4.3 Fine-tuning ALICE Memory Footprint The amount of memor y ALICE consumes depends on the ma x im um i ma g e s i ze t o b e p r oc e s se d , a n d t h e m ax i m um size of its internal image cache. The image cache limit can be influenced by the environment variable ALICE_MEM_FRACTION. I t s v a lu e i s t h e p e rc e n t a g e o f t h e me ...

  • ARRI Projection HDTV - page 25

    25 4.4 Accessing DVS Disk Recorders T oge t he r wi t h A L IC E co m e s t he p os s ib ili t y t o dir e ct l y a c ce s s DV S H DTV an d S D T V d i sc re c o rd e r s. Di r e ct a cc e ss t o d i sc re c or der s i s a l s o p o ss i bl e vi a th e c o m ma n d l i ne i nt e rf ac e (CLIF). The direct frame access uses the DVS API, and does no ...

  • ARRI Projection HDTV - page 26

    26 4.4.2 Network Timeouts Whenever browsing file ser vers or disc recorders with the ‘Open Sequence‘ dialog in ALICE, or the ‘Browse” dialog in the ALGUI, waiting for inactive ser vers can be annoying. Therefore timeouts can be adjusted in the network tab  ph oto of the preferences panel of ALICE. When accessing a DVS disc recorder , the ...

  • ARRI Projection HDTV - page 27

    27 4.4.4 Command Line Inter face Syntax Frames on a disc recorder can be accessed by the alexpose command as files, using the protocol-like filename convention: ‘ dr://<host name>/<partition name>/<clip name>/<frame number> ‘ e.g. ‘ dr://mydiscrecorder/PART1/testclip/42 ‘ means frame 42 within the clip testclip. Fram ...

  • ARRI Projection HDTV - page 28

    28 5 Color Management for Video Look 5.1 O p er at io n fr o m A LI CE 5 . 1 . 1 C o n f i g u r a t i o n o f C M S n o d e i n A L I C E • Choose monitor profile ‘ sony_hd ‘ from the list beside M • Choose print film profile vision from the list beside P • Choose soft clip parameter from the list beside clip If you have your own ICC pro ...

  • ARRI Projection HDTV - page 29

    29 5.1.2 Soft clip Parameter As the color gamuts of film and monitor are different, not all colors that are visible on the monitor can be reproduced on film. In order not to lose too much detail in those areas, it is required that either the lightness or the chromaticity of these areas is reduced. In the list of soft clips a preselection of recomme ...

  • ARRI Projection HDTV - page 30

    30 5.1.3 Display settings Proof : Since the color profiles directly generate cineon data, judging the effect of the Color Management on the screen can be difficult. Therefore, the proof mode allows for simulating the appearance of the recorded image on the workstation monitor . • T o use the proof-mode, an ICC profile for the monitor has to be se ...

  • ARRI Projection HDTV - page 31

    31 in which those areas are indicated can be choosen (p r ef era b le a c o lo r wh i ch i s n o t s o p r es e n t i n t h e i m ag e s) an d ho w to s ho w t he d is t an c e of t ho s e col o rs t o the g am u t . fixed color : All out-of-gamut pixels are drawn with the out-of-gamut color selected in preferences. blend to fix color : The color o ...

  • ARRI Projection HDTV - page 32

    32 5.2 Configuration 5.2.1 Monitor Setup Ca l ib rat i on of t he H D c la s s A r ef e re n c e m o ni t or The HD Monitor that has been used for the color timing sh a ll be ca l ib r a te d ac c or d i ng t o t he f ol l o wi n g g u id e l in e s: • The color temperature shall be 6500K • 100% white shall be at a luminance of 80 cd/m 2 . • ...

  • ARRI Projection HDTV - page 33

    33 5.2.3 Color Management Node The Color Management node is part of the ARRILASER im a ge pr o ce s si n g s y s te m . I t a l l ow s t h e u s e o f a l l f e a tu r es of the Color Management through its scripting interface. Please refer to chapter 5.5, Image Processing Software En g in e o f t h e A R RI L A SE R m a n ua l fo r d e t ai l e d ...

  • ARRI Projection HDTV - page 34

    34 Node type identifier and node arguments The Color Management node is identified by the keyword ‘CMS’. Argument T ype Default Description monitor profile string - ICC profile to be used as monitor profile recorder profile string - ICC profile to be used as recorder profile soft clip string - soft clip parameters to be used (optional) intent s ...

  • ARRI Projection HDTV - page 35

    35 5.2.4 Soft clip Configuration File Colors outside the recorder gamut cannot be recorded without changes, since they do not exist on film. By default, these colors are hard clipped into the recorder gamut. T o smoothly clip these colors, a compression of the monitor gamut has to be done. The strength of the compression can be controlled by the pa ...

  • ARRI Projection HDTV - page 36

    36 For each entr y in the soft clip configuration file, the following parameters are valid: soft clip name of the setting, used as value of soft clip parameter of the CMS node. Example: “mysoftclip”. DL luminance difference, used for each color if not specified color specific dC chroma difference, used for each color if not specified color spec ...

  • ARRI Projection HDTV - page 37

    37 Soft clip parameters demystified G a mu t co m p r es s i o n c an b e a c hi e v e d i n g e n e r a l b y r e d uc i n g th e c hro m a o f c o lo r s , t hu s mo v i ng co l o rs s li g ht l y t o w ar d s the gray axis. In the case of recording CRT monitor images to film, d u e t o t h e f a c t t h a t f i lm g a m u t r e a c h e s i t s m ...

  • ARRI Projection HDTV - page 38

    technical data are subject to change without notice © ARRI 2003 available languages: English ARNOLD & RICHTER CINETECHNIK Türkenstraße 89 • D-80799 München Phone +49-089-3809-0 • Fax +49-089-3809-1244 www .arri.com ...

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