Image Format and Color Space

When I import photo stills into imovie to make a slideshow, does it benefit me if I export the raw photos from Lightroom as 16 bit Pro Photo RGB tiffs and then import those into iPhoto? If I plan to show these on a television, what would be the best color space and format for my images?
Thanks for the help.

Java can read JPEG and GIF images. Startig with JDK 1.3, it can also read PNG images. Java 2D (available in JDK 1.2 or later versions) has the capability to write JPEG images. The JPEG codec is in the com.sun.image.codec.jpeg package.
The Image IO API is available only in JDK 1.4 (currently in beta).
The Image IO framework allows third party vendors to write coder/decoders for any image format. For this purpose, the Image IO API provides the SPI (Service Provider Interface). This framwork allows you to use codecs of your choice. I think JDK 1.4 comes with the JPEG codec, but not GIF.
Java Advanced Imaging (JAI), which is an extension to Java, has coder/decoders for several image formats, including JPEG, GIF, BMP, and TIFF. To use JAI, you need to download it from the Sun's Java site.
According to Sun, because the Image IO API has been developed to replace Java 2D and JAI codecs,they won't be supported in future releases.

Similar Messages

Check image resolution and color

Please let me know whether it is possible to get the image resolution and color used in a eps file.
regards,
Sashi

You can specify the resolution for exporting, for document etc but resolution of the raster objects can not be retrieved.
Color space of the raster object can be retrieved using the rasterItems : colorants or imageColorSpace properties

Access image size and color profile

Hi all,
Is it possible to access image size and color profile ? If not, will it be possible in CS6 ?
Thanks.

Load the external XMP library and get it from that?

Original Image Resolution and Color getting Distorted

Hi All,
I am using JAI for reading images from a source i have to read the images and than have to split the images
initially i was using ImageIO.read() method to read images but for some images it was throwing error as
javax.imageio.IIOException: Unsupported Image Type
     at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(Unknown Source)
     at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(Unknown Source)
     at javax.imageio.ImageIO.read(Unknown Source)
     at javax.imageio.ImageIO.read(Unknown Source)
     at deepzoomconvertor.Main.loadImage(Main.java:370)
     at deepzoomconvertor.Main.processImageFile(Main.java:238)
     at deepzoomconvertor.Main.reteriveAllImages(Main.java:221)
     at deepzoomconvertor.Main.main(Main.java:86)so in such exception cases i am trying to read the images using JAI and i am successful in reading images
here is the piece of code i am using for this
BufferedImage result = null;
   SeekableStream ss=SeekableStream.wrapInputStream(new FileInputStream(file), false);
           ParameterBlock pb = new ParameterBlock();
           pb.add(ss);
           RenderedOp rm=JAI.create("JPEG", pb);
           result=rm.getAsBufferedImage();
             return result;it able to split images but the quality of images are poor it losts its original color format.
can any one have any idea how to do it while retaining the quality of image color and resolution
Thanks in advance
Umesh

The JPEG you are reading is a cmyk color space one. They're not common, but they do occasionally pop up in a collection of random jpeg images.
The default JPEGImageReader that comes with the jdk cannot read them. And it will throw an exception - the exact same one you got - stating it can't. JAI's behavior is a little worse. It will read the image without exception, when in fact it to can't read it. It doesn't handle the cmyk aspect right, so you get a messed up image.
The native JPEGImageReader that comes with installing [JAI-ImageIO|https://jai-imageio.dev.java.net/binary-builds.html] can read them. It appropriately decodes the ICC_Profile embedded within the JPEG and you get a cmyk BufferedImage. But if you wish to render this TYPE_CUSTOM BufferedImage, go grab a coffee while you wait for it to slooooowwwllly paint. You'll have to do a ColorConverOp to turn the cmyk BufferedImage into an rgb one (so Java2D can render it fast).
Having done all this you'll find that 1) ColorConvertOp makes the image too bright and 2) The native PNGImageReader that comes with installing JAI-ImageIO has an affinity for returning TYPE_CUSTOM BufferedImages (arggg!!!).
I'll help you fix points (1) and (2) if you get that far. Maybe the best choice is to simply give up on cmyk jpegs. They're only used in printing press environments, and people only use color space aware applications (like Photoshop) to manipulate them in any meaningful way.

Web Gallery and Color Space

Hi,
Is there any way to change the color space of the Web Galleries made by Aperture from Adobe-RGB to sRGB without exporting the photos separate first.
I'm also missing an adjustment option to set the image quality in the Web Gallery.
Regards,
JO
http://www.motivio.de

I am slightly confused by what you said...
without exporting the photos separate first.
Do you mean change to sRGB while still in Aperture? The answer would be no. The images get changed to sRGB on export. However, you do not have to export the images separately from the gallery. When you create the gallery, the images and html get created all together. So, what you do is change the export presets you are using for the web to have sRGB in the color space profile.

DCTDecode filter used for image with Indexed color space?

I've seen examples of images in PDF that have BitsPerComponent=8, with an Indexed Color Space, but the filter is DCTDecode. This doesn't seem intuitive to me, as JPG supports 24-bit RGB and 8-bit gray. I haven't heard of 8-bit color JPG so I'm just wondering how this is done?
I'm just trying to understand how this works if someone could please indulge me with a technical explanation it would be most appreciated. I understand how the image is represented using the colorspace, I just don't understand how this filter is applicable to 8-bit data.
Please note, I understand that it's not an actual JPG file, that the data is only using the compression scheme.

DCTDecode is entirely legal for 1-component (greyscale) samples as you've noted. There is no problem there.
Remember, that applying a filter (and later decoding it) is entirely separate from the meaning of the data. So it's possible to use filters that just don't map correctly to the data. For example, greyscale DCTDecode could be used to encode samples which were, on decoding, to be treated as RGB. It wouldn't compress well, but the meaning isn't affected.
But DCTDecode for an Indexed colour space is very unusual. Don't look for special treatment, it would be enconding the image data, which would be offsets into the colour table. And of course DCTDecode is lossy, so decompressed data should be close, but is not always equal, to the original.
In most cases of Indexed colour, this would lead to random and useless changes to colours. But it is entirely possible to have colours which map into a linear and smooth set of shades of the same colour - such as 256 shades of pink. An image using such an Indexed colour space is a candidate for using DCTDecode.
In using filters, it is best to forget what you think you know about the data, and just follow the precise rules of the filter.

Lightroom,Nik plugins and color spaces

I'm having an issue and not sure who is holding the smoking gun. I have the Nik ultimate collection installed which covers Lightroom and Photoshop CS5 extended. I work primarily in Lightroom and apply most corrections globally but occasionally i need to do localized adjustments so the photo gets shipped off to Photoshop. Here's a typical scenario:
1) From Lightroom edit in Dfine 2.0 for noise - as copy with Lightroom adjustments which gets copied as a tiff.
2) From Lightroom edit in Viveza 2 - as original since we're now working with a tiff and I don't want a copy for every single thing I'm doing.
3) Edit in Photoshop
Now there's two issues at this point:
1) The edits do not show up in the Lightroom history - it's like nothing happened.
2) Photoshop will complain that the assigned profile is sRGB. Really?
#1 is a PITA because if I want to rewind I have to start all over since there's no history - what exactly is responbsible to set an edit as history? Lightroom or the plugin?
#2 is by far the most serious as it degrades the work in a seriously bad manner. I mean, WTH - I'm moving along in ProPhoto Ferrarri space and all of a sudden - *boom* - I'm running in sRGB moped mode.
I looked at edit->Preferences->External Editing -> Additional External Editor and indeed when I select the Nik plugins from the combo box preferences the default for the plugins is sRGB. I can change to ProPhoto and quit. I repeated this for each plugin assuming that somewhere the setting was remembered. Nope LR acts dumb as a rock and shows sRGB as the defaults for all except the currently selected plugin.
So my questions are:
- who's gonna own up to the problem - LR or Nik?
- how can I work around it?
- how can I make LR remember the settings? Not a registry key nor INI file in sight to set them - so where/how are the plugins tracked?
Thanks for any help!
Jon

Jon,
The User Interface for changing how external editors are invoked is about as smart as your average chunk of granite.
After you change the Color Space to the one you want, you have to click on the Preset box and choose "Save current settings as new preset...". Not exactly intuitive, but there you are.
Hal

DVI-HDMI-SDI Conversions and Color Space-what is happening?

Can someone explain signal processing when connecting computer monitors and LCD TVs via different connections and conversions?
- DVI to HDMI
- SDI (BM) to DVI
- SDI (BM) to DVI to HDMI
- SDI to DVI to HDMI
Are there differences in how each conversion processes color space? I am looking to keep it consistent when monitoring out of PPro and AE...latest CC versions...both PC and Mac workstations.
We never create media for typical broadcast or other conventional distribution. All media is custom animation for Special Events...large venue projection. But we do run multiple monitors and LCD for content creation and programming...many times running video thru a DVI Matrix or SDI Matrix for signal distribution. So I want to understand how each configuration effects video.
Does PPro always work in RGB? 0-255...AE as well? Or are there settings that must be set for this?
Thanks if anyone can help educate me!
_phil

That is allot of info there and I will list some to get you started
DVI - RGB
HDMI - RGB, YCBCR, or YUV
SDI - YCBCR
Premiere - No color management ie colorspace control. I believe it just uses the media and current display output color space. You would have to ask someone at Adobe there.
AE - Color management ie colorspace control. You can set what space your coming from and going to.
Do you have any colorimeters to calibrate your display devices? If not I suggest you look at X-Rite since it is cross platform OSX and Windows.
Eric
ADK

Image format and ImageIO

Hi, there,
I have some questions as follows:
does Java recognize only 'gif' and 'jpg' images?
Are ImageIO APIs available and are they supposed to be able to process any type of image?
Any help will be highly appreciated.
Edward

Java can read JPEG and GIF images. Startig with JDK 1.3, it can also read PNG images. Java 2D (available in JDK 1.2 or later versions) has the capability to write JPEG images. The JPEG codec is in the com.sun.image.codec.jpeg package.
The Image IO API is available only in JDK 1.4 (currently in beta).
The Image IO framework allows third party vendors to write coder/decoders for any image format. For this purpose, the Image IO API provides the SPI (Service Provider Interface). This framwork allows you to use codecs of your choice. I think JDK 1.4 comes with the JPEG codec, but not GIF.
Java Advanced Imaging (JAI), which is an extension to Java, has coder/decoders for several image formats, including JPEG, GIF, BMP, and TIFF. To use JAI, you need to download it from the Sun's Java site.
According to Sun, because the Image IO API has been developed to replace Java 2D and JAI codecs,they won't be supported in future releases.

Export failed to meet required bit rate and color space specs - ProRes 422 to MPEG2

Using Premiere Pro CC v7 I exported a ProRes 422(HQ) file to MPEG2 and selected the HD 1080p 23.976 preset. I needed the finished file to have a minimum bit rate of 50Mbps and the color space to be YUV422. I was way under the minimum bit rate and the color space was incorrect. Can someone please instruct me on how to achieve my desired results. Thanks!

The source frame rate is 23.976, so I guess I would go with 24p. My intention is to upload the file to a streaming video website. They have their specs laid out for me, I just happen to be new to all of this so I am having a tough time meeting them.
My question right now is, if i have selected the MXF OP1a XDCAM option with XDCAM 50 NTSC (4:2:2) video codec, will the export be in mpeg2 and what will my bit rate be? I have no way of viewing the bit rate with this configuration.
Here is a screen grab of their required specs:

Quick develop and color space ...

Ok, I know that library module previews are in Adobe RGB.
So, we view files which are in Adobe RGB.
But what about editing?
What color space we use when adjusting in quick develop in library module?

Armut12 wrote:
Thank you for such a clear summary.
Do you know why does Adobe not use Melissa RGB in library mode previews?
As far as I can see, assigning an Adobe RGB profile to a JPG file and assigning a ProPhoto RGB profile to a JPG file does not create any difference in file sizes.
Is there a disadvantage of using Melissa RGB in library views?
Melissa RGB isn't really a supported RGB working space. That is, it's not something you'll find anywhere outside of LR unlike say sRGB, Adobe RGB (1998), ProPhoto etc. It isn't installed or used by any other Adobe app. It's kind of a strange beast too: ProPhoto RGB with the sRGB gamma TRC. We'd have to ping the original LR architect (Mark Hamburg) to find out why he decided to use this odd space solely for RGB values and Histogram but I suspect the main reason is that viewing a linear encoded Histogram would confuse most users (it would look 'odd'). I can't say why he didn't just use the ProPhoto 1.8 TRC instead but that's water under the bridge. This space is not ProPhoto RGB due to the gamma encoding and it isn't used for processing! Only the RGB values and Histogram.
The actual color space used for processing has no name. It IS ProPhoto RGB primaries with a 1.0 TRC.
I suspect that using Melissa RGB or a similar huge gamut is unnecessary in any preview mode because:
1. Being so big, you'd want high bit (16-bit) data to reduce banding and that's overkill.
2. There isn't and never will be a display capable of previewing ProPhoto gamut.
3. There are a few displays that get close to Adobe RGB gamut, we may see that grow in the future. So might as well use that large gamut color space for previews. IOW, ProPhoto is way, way too big, sRGB is too small considering we have wide gamut displays.
IF you have Photoshop, you can build Melissa RGB and save that out as a profile. Only useful if you want to play around but has no practical use. In Photoshop's color settings, select ProPhoto RGB as your working space. In the same menu, now select "Custom RGB". The dialog shows you the "DNA" of ProPhoto RGB (white point, chromaticity values, gamma). Change the gamma to 2.2, save as an ICC profile. You now have Melissa RGB. You don't get the true sRGB TRC but a simplified one, but close enough.

Options for image format and encryption when creating disk image?

I am trying to help someone via email, so I am not positive that he is doing everything I tell him .
He was having problems with creating a disk image of his project, but I thought he was getting it now until he sent me a message asking what settings I select when creating a disk image. He included a picture that has the options in drop-down bars. The first two are not a problem, but I don't know where the second two are coming from, as I have never gotten those:
+Save As: [Name of project]+
+Where: [Location]+
These two are what I see each time I do a 'Save as disk image' but he also has a block with these other two options, that I have never seen. I put his default selections in the brackets:
+Image Format [read-only]+
+Encryption: [none]+
I took a look at iDVD's options for archiving a project, thinking that he had done that, but I still do not get these options.
Any information appreciated.

Beverly Maneatis wrote:
... How do I get a screenshot into these replies?
send me an email, Bev, I'm shy to publish here that simple html code.. (picture has to be on some webspace...) .. I want to avoid, some 'beginner' posting here 10Mpixel vacation pics....

Canon Pictures Style and Color Space

Hello!
I need some clarifications.
If I well understand Aperture do not consider the Canon setting for Picture Style when shooting in RAW.
Is it correct?
The same is valid for the color space.
Thank you!!!
Max

Yes...You understood! Thank you very much
What about the color space when shooting in RAW? I noticed that even if my camera settings were sRGB, Aperture shown Adobe.
Thank you!
Max

Image size and Color Adjustments

I know for sharpening purposes, it's best to sharpen an image the size it is going to print. But is the same true for white balance/color corrections, contrast and tonal adjustments?

Not in the same way. Color adjustments are not size dependent, but you may well want to have a slightly different look for the same image printed large and small - take advantage of the relative merits of each size of reproduction. For instance, you may want to have a slightly contrastier image for something printed the size of a business card and emphasize more of the intricate highlight and shadow detail for a poster of the same image.

Chrome and Safari image alignment and color problems after upgrading to 10.8

I have just upgraded from lion to mountain lion with a clean install. My website davidandora.com now displays image sliced improperly aligned in chrome and with slightly adjusted colors on some slices in Safari. They appear fine in the same version browsers on Macbook also running the most current mac OS. I suspect this is not a browser problem since there are issues with both browsers, but what could be causing this? I have run all updates on my computer and browsers.
Checkout this address for a clear example in both browsers:
http://www.davidandora.com/andoracam/
and this image for what I am seeing:
https://www.evernote.com/shard/s16/sh/eb7ce0f4-4735-418d-8793-f867d7e4d642/b7caf 9b1a7e6671b0fd714ac3e98de08

I will add that the current Firefox is displaying everything correctly. So strange.

Image Format and Color Space

Similar Messages

Maybe you are looking for