Photoshop :: How To Save A Png With A Straight / Fat Alpha
Oct 24, 2013
work in broadcast and a new piece of gear prefers png files. I know how to save png's with a transparency, that's not the problem. What I don't know how to do or if it's possible is to save them with a straight or fat alpha. Right now we feather or extend the edges out past the alpha of say a logo and save it as a tif, psd or .tga. That way once it's keyed over video or whatever, the edges look good, no black bad edging.. But switching to png files, how to make a straight or fat alpha since it sees transparency. I mean if I feathered out the edges, a png will see that correct, since there's no alpha?
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Oct 26, 2012
Is there a way to save the alpha channel not premultiplied in a tga as I need straight alpha ... ? While testing I got strange behaviour.... I have 5 bar from white to black with RGB value of 255,191,128,64,0
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1) Copy pasting those from rgb to alpha give me some "conversion error"
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255191128640255191 and 192128 and 12964 and 650
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Opening this in other software will give me
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255175105460Â Â
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2) Copy pasting the red channel to the alpha give me "converted premultiplied" value
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255191128640255204149850Â
opening this in other software will give me
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255191128640Â
I don't think we're the only one that needs to have straight alpha?
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Jan 7, 2008
im trying to add an alpha layer or alpha channel to a bitmap and save in BMP format.
I am using Photoshop 6.
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Nov 20, 2005
i have an image which has an alpha channel which allows certain parts of the image to be more transparent than others.
When you de-select RGB channel and only leave the Alpha channel selected you'll notice that the image has now turned into a black and white alpha image, where black shows complete transparency, and white shows no transparency. Is it possible to save this black and white alpha image? Incase you dont understand what im trying to do heres a picture.
I just took that pic off the net as an example of what i want (incase your wondering), so basically, all i want to know is, how do you save an image (like above) which shows the levels of transparency.
At the moment, i have to use the printscreen key on the keyboard to capture the image, which is very annoying because its extra work and if the image is larger than the screen it requires alot of aligning.
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Aug 22, 2013
I have a PNG file created in Photoshop and I need to save it with an alpha channel for web purposes. I tried 'Save for Web & Devices' and selecting the Transparent box.
Then, after saving, when I select 'get info' for the file it says there is no alpha channel. I'm stumped I can't seem to create an alpha channel from within Photoshop while I'm editing.
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Nov 24, 2008
When I use the "Save As..." command to save a picture with transparency as a Windows bitmap file (.BMP), the transparency information gets lost. I selected alpha-channels and chose 32-bit in the BMP options dialog.
In CS3 this works fine.
how I can get it to work in CS4? The target program can only read BMP-files, so my workflow depends on it.
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Nov 10, 2012
I have PSE9 and need to create an image without the background (mk background Alpha Channel) and save as Targa. I can edit the pic, save at 32 at 200k but PSE9 does not allow to save/create Alpha Channel. How do I make the (background an) alpha channel and save as Targa?
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Aug 4, 2009
please help me, when i go to save my image as a targa file it doesnt allow me too tick the alpha channel box, i need to save it as a targa file aswell, how can i sort this?
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Apr 1, 2011
Is there a way to make a object with straight lines to change the straight line to be undulated like a curly.
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Nov 6, 2013
I have a series of images with alpha channels what I want to separate out from the images and save as a new file with a filename suffix.
For example I have a series of folders containing thousands of images:
These files are filename.dds files (I already have the .dds plugin to read them but you could use .png for example).
I load the image, goto Colours - > Components - > Decompose :
In the dialogue I enter color model : Alpha, tick decompose to layers - > OK
I then export the file as filename_a.jpg
Is there a way to batch this process for the 1000's of images I have?
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Jul 23, 2005
can someone tell me the easiers way to make an alpha tga file? Photoshop 7 can done alpha when i save to tga 32 bits, but in CS we have to do it manually...
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Sep 5, 2013
any difference between alpha layer and alpha channel? I mean has to be right? I just don't know what exactly that would be if there is. I'm trying to figure out some more stable uses for computer graphics when building textures with alpha layer or alpha channels. So far I get a flicker from opengl bug when using alphas. So I'm wondering if I use Alpha layer and something with a solid color underneath the geometry if I could achieve a more stable result where alpha sorting. Possibly clearing it up where my alpha layered geometry stays on top vs bleeding through at times it seems.
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Nov 14, 2012
I doing ruler, strighten, great new feature, not working for these slanted celings I have in a new series.
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Using the crop handles also make a mess.
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Jul 16, 2009
how you make a straight line in Photoshop?
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Jul 16, 2012
I think this features is on a programas like painshop and similars, but I can't find it on photoshop, I want to do geometrical shapes using the pencil tool with soft edges.
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Jun 13, 2013
Why when I open an image into CS5 does it go straight to raw? Jpegs! This is new.
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Nov 2, 2006
i have a graphic of a zebra stripe, a long rectangle with the various stripes going vertically down in various shapes and sizes. I need to "bend" it into a circle. I tried just creating a pattern out of it and filling a circle selection with it but it's not evenly bent because of the way it fills.
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Jul 2, 2006
How do I draw a perfectly straight line...?
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Apr 29, 2009
Is it possible to use the eraser (or perhaps another tool) to erase in a straight line (rather than freehand)? I have an image that I need to make a series of erasures...take away straight line segments of the image. I keep finding how to "erase a straight line" on the internet but they are only discussing how to erase or clear a straight line just drawn...not what I am after. If there is a way (I was hoping I could use the eraser tool and press the shift key or something)
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Oct 15, 2004
How do you draw a straight line?
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Jan 20, 2007
like to make a head shorter vertically, and position it so that it is not on a tilt.
is there a way o make it shorter besides free transform?
i dont know how to use the ruler guideline to reposition the head.
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Jul 19, 2003
I created this using Arcsoft Panorama Maker; the original file is more than 8000 px wide.
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Jan 23, 2003
If i wanted to draw a straight line with a color, much in the way you would traditionally with the edge of a rule, with the paintbrush or pencil tool, how would i do this? The pen tool creates paths. i do not want this. i just want to draw or paint a straight line.
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Jun 9, 2006
That is it, a simple, basic, black, straight line.
I can not find this feature anywhere.
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Nov 23, 2011
Whenever I add a stroke to text it never stays straight edged like the text, it becomes more rounded. Question is, is there a way to stroke the text with the edges staying straight instead of rounded without having to just draw a box around it or something?
Here's a picture of what I'm going for, I'm fine with making a box around the text (there are other characters, rounded characters like an "O"), but it would be a big time saver if there was a way to do it quicker.
Stroke in Photoshop is on the left, desired effect is on the right. The letter "i" might be a bad example, however the effect I'm looking for is a stroke keeping the shape of the text rather than rounding itself.
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Jan 1, 2013
every time i create a 3d object, its not at all straight when i rotate it. all the sides are uneven.
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Jul 26, 2012
I am still using CS2, and I am having to break up my desired curved lines by repeatedly using the SHIFT key while clicking the next point along my desired curved line. I would like to know if there is a plug-in that would let me pick the starting point as normal, hold down the shift key while I move the mouse to the ending point, and then,after I click and get the straight line with the brush of my choice, I need a way to BEND that line in the pristine shape of a circular or elliptical arc. I need some way to indicate how much arc angle is needed (from a teeny bit to a semicircle), and also how much to skew it towards either of the end points.
The way I am doing this now is
a) create a new layer and draw the straight line, then, delete everything else on this layer but the line, then show the main layer and edit the 2nd layer with warp, and then, finally, use warp to bend and skew the straight line - after all that, I flatten the image back to one layer. The problem with this method is that warp doesn't hold the edges of my formerly straight line (with crisp edges) true, but introduces indentations and juttings which I then have to go and "fix up" by hand.
b) copy the image to MSPaint, and use the bezier cure to draw the curved line I want, and then, copy it back into CS2.
If there is a way to bend my straight lines drawn with my selected brush, and it would keep the edges crisp and smooth, then I sure would like to learn how. The problem with using "paths" and stroking the path is that I cannot see how it will look while drawing the path and, even after I stroke it, that ugly path line with its anchor and control points muddles the picture and I wind up having to delete it and go back. I need to be able to see the FINAL result of bending my curved line while I am adjusting it with no artifacts to interfere with my close examination of the result.
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Sep 12, 2002
I've got an image that is basically banner style:
--------------------------------
|Flag1|Flag2|Flag3|Flag4|
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It has four different country flags on it. What I'd like to do is turn that image into a circular image. Hopefully you know what I mean. I've tried to use the shear filter but can't get it to look right.
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Feb 17, 2009
I drew an image and now want to edit it in photoshop cs3 or illustrator, I want make what ever line that suppose to be vertical or horizontal straight, and curvy line even. Overall I want to make my image outline straight and even, I drew it freehand so it is hard to make a perfect straight and even line.
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Jun 9, 2008
The first problem I've encountered... is I can't even draw a circle or curve with Photoshop, because there is ALWAYS a straight edge somewhere!
When I am moving the brush tool directly left, right, up or down - I can make a perfectly straight line. But when I move it in an arc shape for example, it's like it's always trying to go back into a straight line instead of just cuuuuuurve...
Know what I mean? I am no noob to computers, I think it may have something to do with pixels being squares... But the thing is, I see a lot of paintings done in Photoshop that look so photo-realistic, perfect curvature and stuff. So there is a way!
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Sep 3, 2007
I want to bend a line in photoshop. I create a path with the line tool, but then what? If I add an anchor point, it creates a new line that closes the shape.. I can position that line over the bend line, but i can be done more simple I recon..
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