keep an a 1 bit image alpha channel

Similar Questions

• 8 and 16-bit grayscale alpha channel

  Hello.

  When I have an image in 8 bits per channel, its grayscale alpha channel is 8-bit (256 levels).

  But when I have an image in 16 bits per channel, its channel alpha, grayscale 16 bit (32.768 levels)? They are a lot to make a selection...

  Why 16-bit alpha channels exist if they are not real?

  They are real, you can copy and paste into a layer for example mask instead of loading them.

  http://forums.Adobe.com/message/4597174#4597174

• How you can automate BlendMode.LINEARDODGE on a 32-bit image by channel?

  Hi all

  I have a stack of rendered images coming from a bunch of cg I want to create an automation via the mixing layer.

  
  The images are currently 32 bits/channel (think of them as several HDR images on layers).

  I'm trying to combine them using Blend Mode (adding) linear density with Automation to control various lighting sources in a mode of post process.

  I can get the automation of work if I am using 8-bit or 16-bit, but I can not automate via 32-bit. I can however manually the blend over the point mode and click on in the interface in 32-bit mode.

  I'm game for any automation model that will do it.

  Good news,

  I've updated to 2015 of CC and the script works perfectly. woot woot. Crisis averted. Thanks for the suggestions everyone!

• How to open 32-bit PNG alpha unpremultiplied?

  I have the last Photoshop CC (2014) and I tried to figure out how to import a PNG file of 32-bit with alpha channel embedded, but unpremultiplied in it.  So this is a PNG image with four channels: red, green, blue and Alpha.  Unfortunately, when I open it in PS, I get a picture of three channels (R, G, B) where PS has premultiplied cheerfully alpha in other channels, as you can see here:

  

  The "glow" is adverse to the Alpha channel.

  I know that the Alpha channel is still there because if choose channel-> Split, I get four grayscale images: myimage_red, myimage_green, myimage_blue and myimage_transparency.    So the Alpha information is kept separate, but PS is 'useful' and he premultiplying outdoors.

  Y at - it a setting or anything else that can solve this problem?

  Note: The reason is that I use the 'alpha' for something else (ambient occlusion) channel in a CG program and it must not be used for transparency at this stage.   (Long story).

  Yes, you are badly abusing the word "premultiplied".

  There is no premultiplication past here - just says that you have something in the transparency channel which is not transparent and therefore doesn't seem correct when applied as transparent as a PNG, it must be.

  Read my previous post about how to extract the transparency channel.

  In addition, you must talk to your authors to program CG PNG export to actually conform to the PNG specification.

• ProRes 444 is only way to export (share) titles with alpha channel?

  I like to keep a number of equities with alpha channels and ProRes 444 results in large files.

  Is it possible to reduce the size of the files?

  ITI is the best way with an alpha channel construction.

• No conservation of alpha channels when using Image Processor Dr.Brown Pro.

  Version: Photoshop CS5

  Platform: PC

  Tool/Script: Dr.Brown Image Pro processor

  Question:

  When you use this tool to save the .psd or .tga as .tga files files, .tga file does not retain the alpha channel...  Which means that the source file has an alpha channel works, but it is not present in the file generated by Image Processor Pro.  I have been by ticking the 'Alpha channel' on the interface of the IPP and tried various permutations of the other settings (I of course fully understand).  I don't know what else to try, so I hope someone here can offer some insight.

  Context:

  I develop a game to a Publisher that requires the .tga file format (must be 32 bits/pixel) for images independently.  I created all the .psd and files later .tga I need, but it turns out that given the amount of image files, I need to resize to reduce the overall size of the game (and the alpha channel must be maintained, in order to facilitate the transparency of the image).  Since there are hundreds of images to perform this task to, I'd really like to avoid do manually, because I left the ~ 1 week before my deadline for the demo and want to focus on other aspects of the game.

  Thanks for reading, any help is greatly appreciated.

  -Va

  Now, I've added an if statement around line 3805 see if it works for you...

  case "tga": {}

  saveOpts.alphaChannels = toBoolean (fsOpts.tgaAlphaChannels);

  If (saveOpts.alphaChannels) {saveOpts.resolution = TargaBitsPerPixels.THIRTYTWO ;}

  saveOpts.rleCompression = toBoolean (fsOpts.tgaRLECompression);

  saveOpts._flatten = true;

  break;

  }

• export the image with an alpha channel in cs3

  on the video layer 1 I have a background image and video 2 I have a psd numbered video of maya (is the text animation) with an alpha channel (black is the alpha).

  If I export the end frame (even with 1 off video (background)... I don't get a bmp or tiff with alpha channel image.  I get the black background.

  is it possible to export end frame and keep the alpha channel?

  Thank you!

  Search millions of colors +, this will give you channel alfa.

• How to add an image to the alpha channels

  I want to add an image in black and white in this layer alpha https://gyazo.com/f3507eaa453f720bf7257ed9f7725404

  But I can't get a picture on it. Any help appreciated.

  1) press A ctrl or cmd - A on a Mac to select the content of your layer or simply select all from the menu bar.

  2 in your layers panel, select your alpha channel and then issue - special paste - paste in Place

  The contents of the layer doesn't have to be black and white as it will be converted to grayscale, but depends on the type of mask you're trying to do.

  Hope that helps

  Terri

• Image resizing loses alpha channel

  If I open a file with an alpha channel .psd and resize it via the size of the Image to a smaller version and then save it again, the alpha channel is no longer detected in the new .psd file. I tried to delete the alpha channel and recreate but it just seems not recognized as having the alpha transparency when I open it in other software (for example, an excerpt on OS X). Can someone test this (Note: I'm using CS5) and tell me if they you encounter the same problem? It is specifically only passes through a resizing using the size of the Image and not by the size of the canvas.

  Ah Ah! I solved it.

  I forgot that if the sum of the image layer contains even a tiny part of the transparency, it will use for transparency rather than the alpha channel information. In this case, due to resizing the background layer must have a transparent pixel slightly somewhere on the edge. Fill the entire layer of bg correctly done.

• Images added to the timeline lost their alpha channel

  Hello

  I use first elements 11.0 and added a few png-imags chronology (in another channel the film imported). Each image has a completely opaque pixels and a part with completely transparent pixels. Initially, he appeared fine exactly as I wanted it. But when I added the fourth table, or so, all transparent pixels in black images.

  Images look exactly the same source. I tried to save their new with Photoshop and Paint.NET. I tried to delete a photo and add it again. I tried the first Elements of closing and opening it again. Somehow, nothing worked.

  I checked him 'interpret' the film - window and there is no check mark in front of 'Ignore Alpha Channel' for one of the images.

  I hope someone here can help me ;-).

  Thank you

  Gordian

  Why workded the first several of PNG, but has stopped working, is a mystery to me. The only thing I can think of would be if the pixel x pixel size of those of PNG is large, there may be a problem of resources, when enough are added to the timeline. What are pixel x pixel size of PNG?

  The film and all the images have a resolution of 1920 x 1080. I use Windows 7 Professional x 64 with 8 GB of RAM on an SSD. All project files are found on my HARD drive (internal).

  In the meantime, it is good that you have the solution to workaround to use PSD with transparency, to get your project done, but I am surprised by the behavior of your exposed PNG. A riddle for me.

  That's what I did: I opened the png files in Photoshop CS 6 and saved once again that the psd files. Then, I used 'Replace the sequences' in Premiere Elements to swap files png to psd files. It did not work, the transparent pixels in fact everything went black.

  I wrote that I had success with a new psd file - not with the images I actually wanted to use.

  I don't really know why, but I had to recreate the images from scratch again once (Fortunately, it wasn't that difficult or time-consuming). I saved them as png again files (because I do not really see any reason why that should not work) and imported. This time it worked as it was supposed to. But I can assure you that the new images had exactly the same as the 'old' pixel data.

  I guess it was some cache error. I said not a part of the story, because I thought it was irrelevant. When I had five of my pictures working properly, I used a png on the source files compressor (I had a backup of them). It compresses a third of the original size - but also replaced the transparent pixels to whites (must have used the wrong settings or so). Premiere Elements noticed the changed files and show them in the project now. I copied the backup files to the wrong files and now the files returned to their original state in Premiere Elements. The problem started when I added the following image to the project.

  I managed to finish the small project as planned, but I still wonder about this strange thing. Thanks for your reply though. How to mark this issue as resolved? That I have to take a "good response" (but then I don't know which one to choose)?

  Post edited by: reinc - me
  I fixed the formatting of the citation.

• Action to combine separate images and alpha channels

  I have a sequence of images 200 + each with a separate file, corresponding alpha channel which should be recombined in photoshop. Ideally, I would like to load each image as a layer and the corresponding alpha image as a mask to this layer, and then save the entire file as a .tiff.

  The files are in the order IE results)

  Image_1

  Image_1_alpha

  Image_2

  Image_2_alpha

  Image_3

  Image_3_alpha

  ...

  I am familiar with the actions and batch processing, but something of this magnitude is beyond me. I think there should be some kind of custom script or action. Ideas and help is appreciated!

  So I sort of found a work around that is not as intuitive, but works using measures.

  Basically, I opened a pair of side-by-side images in PS it is)

  Image_1

  Image_1_alpha

  and performed an action where I copied the image alpha basically and pasted as a mask for color image. I then added a record and double closure order to close both files.

  If I open all my files-by-side in sequence and perform the action that I can treat all my files but need to manually run the action rather than use a drop or a lot.

• How do you get the 32-bit floating-point effects of working with an alpha channel?

  I do a few bugs, and lower thirds, but I find it very difficult to obtain effects of 32-bit floating point for export with transparency properly.

  When I do translucent animations with brilliant light effects, they look great in AE but I can't seem to find a way to bring Final Cut and get them to look as they should.

  I have attached this example of a bug with a screenshot of EI on the left with the CPF on the right. The Sun of colors and gradients of vibrant blue get flattened in a dull greenish color.

  

  As far as I know, all my alpha and color management settings are correct. I tried the options endless and codec settings to try to solve this problem, nothing helps.

  You can create an extreme, as for example by creating a translucent shape, crank the path of color to a saturated color superwhite and moving it around with the motion blur. The rendering looks pretty good to make an 8/16-bit, and nothing like he did in your Web.

  I have the feeling that superwhite with alpha channel color values are multiplied by the way AE gets ' lost in translation ' when it is rendered 4-channel 8-bit. Is it possible to look the way it does in the Web?

  Thank you

  Clint

  There is nothing wrong with AE, you have just a poor understanding of the works of floating point processing. In short: you're confusing mix of transparency, and this is why everything falls apart when you export. The color is still there, there is simply no opaque pixels to process on and so she never shows upward, much less in an environment that only works in 8 and 16 bits as FCP, limited killing already loyalty by using an 8-bit format. That's all that happens, and unfortunately there really isn't much you can do. Unmultiplying the result based on luminance should give you a usable result, but it remains an approximation, and regardless of whether you use the same blend modes in FCP, it will never be the same work. So in conclusion, a better way to do this would be to work 8 or 16bpc and make it look as if she were 32bpc. That is, if you can't make the final stage in AE, where even once, you'd be able to get a good mix in the float.

  Mylenium

• The alpha channel of delivery images - is there a standard?

  I need to provide a logo in 3D with alpha channel of a television station local to a customer and of thought, I would like to ask if there is a standard for this?

  I suspect Apple .mov is likely but as a windows user, I never use but have no problem with it.

  For lossless I use "UT Video Codec", it's free, fast, and I had good results.  I don't KNOW if I book in this format, it will cause a problem for the other end... call it a hunch.

  Call the station.  Ask for technical service.  They will tell you, you can ask on the tray, codec, frame rate more horizontal & vertical resolution.

  Now, if he came to MY station, I would accept 1280 x 720, 59,94 FPS, quicktime movies in the Animation codec, with a straight line (i.e. NOT premultiplied) alpha channel.  Stereo audio.

• CS5.5 | ProRes 4444 - interpret images sees NO Alpha channel

  I thought that this problem could have been supported now.

  Guess the bug in CS5.5 fixes are little, or not at all

  (1) export a sequence to ProRes 4444, then set him straight alpha channel export.

  (2) re - import into AE

  (3) open interpret footage dialog...

  You get REALLY disappointed when discovering that all alpha options were grayed out.

  What is this MADNESS going to STOP ProRes!

  > If you are ever in Hamburg, Germany. Let me know and the beers are on me.

  Can I get one to point the finger Dan this thread?

  I am closer to Hamburg that Dan is, anyway. (I'm in Graz).

• export the video with alpha channel

  Hello

  I am brand new with Pro CC first. I completed a sequence where V1 has a series of still images, of small size, so I can see the video clip on the V2 in the background.

  I already exported only and it works very well.

  I would now like to export the clip on V1 by single with alpha channel so that I could put a different background in a new sequence.

  Read and followed the instructions as described in the forum, but they must use something different than what I use (first Pro CC on a laptop with windows 7 Professional), because I do not see the indicated settings.

  Once the clip is exported with an Alpha channel, I'll bring Premier Pro and everything just change the background several times so I will gradually in with several different sequences.

  How could I accomplish this export with an Alpha channel?

  Thanks for the info.

  Bert

  Hi Bert,.

  I think you have your tracks reversed, the stills would be on background on V1 and V2. Of course, if a SINGLE export with alpha and no background, then you can simply use V1 (but later, we clip you made must be V2 or higher to insert background on a bottom rail to show areas of the alpha channel). Export using QuickTime > GoPro 12-bit with Alpha codec.

  

  Thank you

  Jeff Pulera

  Safe Harbor computers