Photoshop :: Pixel Tolerance
Nov 23, 2007
bought a CD printer and made a template on photoshop. when using the elliptical tool (and yes, i held shift+alt to make it symmetrical/centered) to make the work paths around the inner ring, it asks something about pixel tolerance (the default was at 2.0) and after i hit okay, the circle becomes messed up.. how can i make a perfect circle? if i change the tolerance numbers to higher or lower, the circle becomes even more irregular and jagged.
this is how it looks in photoshop...
this is a smaller version (kind of easier to see the irregularities)
and this is how it looks when i print it
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Apr 11, 2013
When I crop a picture Pixel Demensions become 6 bytes Width and Height 1 pixel each. I can no longer see the picture. How can I fix this?
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Apr 22, 2013
I have two art objects on two layers. I want to match to the pixel the two objects that otherwise could be exactly the same but one layered object was imported slightly smaller.
The scale tool has good scale handling, I just want to measure the tool spots to the pixel to gain an exact scale size factor and match sizes.
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May 12, 2007
It blows my mind that somthing this simple isnt all that simple. I used the eyedropper tool to slect a color from another photo, then used the brush while fully magnified to change the color of each pixel.
It was coming out a weird greyish color, and I noticed that if I clicked more than once, it got darker, but so did the pixels directly around the one i was editing. So, i copied both pictures, loaded them into paint, and went to town.
It worked, but then when i copied it back into photoshop, it had a black background (there was no background in the original pictures) around the sprite I was editing. I tried to use the magic wand tool to get rid of it, but it took parts of the sprite with it, so...
Is there any way that I can edit the color of a single pixel (or hell, even a group of pixels if they share the same exact color would be nice...preferred, even) accurately? If not, what program could I use that would keep the transparent background?
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Feb 19, 2012
Via VBA macro, some way of getting RGB/CMYK color values of a bitmap pixel by pixel?
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Mar 13, 2011
I managed to remove the background, of an image,(A whit background) and put the image on top of a transparent layer. made a transparent image. When I place this image over a light color background, it looks fine, but when I place it over a dark color background, the edge of the image looks very rough and dirty, I think it's because some of the anti alias from the original image, how can I make it a clean image without going to delete pixel by pixel?
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Jul 26, 2012
We are developing an application using functionality of Gimp´s channel mixer with java.
Our problem is that we don’t Know how channel mix works exactly for transforming pixel by pixel in Java.
For example,
We have an image an do on it the next mix:
Output Channel = Red
Red=200.0
Green=0.0
Blue=0.0
For simulate that, we transform all pixels with Red Component *2 and 255 (maximum) if is greater.
Our problem is:
Output Channel = Red
Red=200.0
Green=60.0
Blue=0.0
How can I simulate that?
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Jun 17, 2009
It would sure be nice to have the Tolerance within the Magic Wand be a slider so I wouldn't have to type in the value each time.
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Mar 26, 2008
Select with the Magic Wand tool
I am curious about the math for the Magic Wand Tool in the following circumstance:
The RGB image has been converted to GREYSCALE and then into LAB mode.
The lightness channel is selected only and I wish to create various selections with MAGIC WAND TOOL based on numerical values entered in the field TOLERANCE.
The image (as described above) shows values in PERCENTACE for K (Black) when in LAB mode.
Now how does the value of TOLERANCE correspond to the value K: for this case?
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Feb 4, 2007
I am wondering what would be the keyboard shortcut to change the tolerance percentage up and down? For example, to change brush size bigger you press"[" and for smaller you press, "]". I am looking for the same kind of shortcut, but instead of brush size, I need it for tolerance. I spent more than 30 minutes last night trying to find it in the keyboard shortcut dialog thing but I could not find it. I am sure photoshop has a shortcut for this.
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Dec 6, 2012
I'm using Photoshop CS5 and as you can see on the picture below, when I set my grid line to every 1 px, grid doesn't match canvas pixel size.
Now I'm not able to draw sharp shapes using pen tool because even if I hold shift key everything gets blurry.
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May 16, 2006
Either my lack of sleep has caused me to overlook something obvious or my magic wand has gone haywire. Basically, the wand behaves as if the tolerance is set much higher than the value I select. Even if I set it to 0, the wand selects colors that are radically different.
I am working with all channels (not just red for example), the file is a single layer, etc. I've worked with PS for years and I can't see what I'm doing wrong.
In the attached file I selected the white area just above the check mark. With my settings, it should select all the white around the check. Instead, it selects half the white and some of the check, as you will see.
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Apr 4, 2012
How do you set the gap tolerance in Hatch command?
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Jul 12, 2013
Is it possible to get your Gap Tolerance setting to stick. Mine keeps reverting to 10 by default!?
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Sep 13, 2013
I have a drawing I am trying to ordinate dimension and I was wondering if it was possible to place a symetric tolerance for a dimension on a second line under the actual dimension?
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Jul 7, 2011
I have a PNG image that has a transparent border. I want to select the pixels in the image that are not transparent (it's a photo-type object with non-geometric edges) then replace the object with a patterned fill.
Process:
1. Select Magic Wand and click on the transparent portion of the image (I have all but what I want selected)
2. Invert the selection (I have what I want selected)
3. Select the Fill bucket and fill the selection with the desired patterned fill (a checkerboard, let's say).
Problem:
1. To properly select the transparent portion of the image without the object and retain a sharp edge, I need to set a low tolerance level.
2. To properly fill the object I need to set a high tolerance level. The photo object has typical color variety - setting a high tolerance will fill the entire thing to the selection border and not miss any pixels.
3. The Tolerance level is global and its setting is used by all tools that understand it.
Resulting Process:
1. Set Tolerance to low
2. Select Magic Wand and click on transparent portion
3. Invert selection
4. Set Tolerance to high
5. Select Fill bucket and fill the selection
Forgetting to set the tolerance to the desired level based on the tool in use produces unwanted results.
Proposed Solution:
I'm a programmer, so I envision the new Tolerance bar as an array of values instead of a single value. The array saves tolerance levels individually for each tool, and when I switch tools the tolerance level changes as well.
When I have the Magic Wand and change the tolerance, that new value is stored for Magic Wand and all other settings are unaffected.
When the app opens the values are set to some default setting (or user defined settings if there is such a startup setup process, or remembered settings from the last session if state values are retained).
Am I missing this ability for Tolerance to be set individually by tool?
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Feb 5, 2012
I'm trying to get hole tolerance by Inventor API using c++ but the value returned is not correct.
the code is:
Parameter* diam = m_Feature->GetHoleDiameter(); // m_Feature is a given HoleFeature
double tol = diam->Tolerance; // returned 1.0
BSTR str = diam->Tolerance->HoleTolerance; // returned "0".
// The correct value is 2.89
How can I get the correct tolerance value?
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Dec 2, 2013
I've got some 2D contours that have certain vertices very close to each other in some parts of the string. Some are only 0.008 apart. The cross checking in Drawing cleanup is picking these all up as crossing strings.
anything that will possibly filter out these vertices at a set tolerance? I've tried using Snap clustered nodes but that won't work seen as though it is occurring on the same string.
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Apr 30, 2009
While looking at the different tolerance methods, I see a couple called MIN and MAX, which just tack these words to the end of the dimension. Is there a way to customize the tolerance methods to add suffixes or prefixes to dimensions, such as TYP or 2 PLCS or something like that, so that I can minimize my detailing time.
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Dec 6, 2013
Seeing the behavior for these symbol alignments, preferably also in earlier version of inventor?
Unable to display content. Adobe Flash is required.
In the video i'm showing an A2 sized sheet, the effect is less apparent on smaller sizes but still noticable.
But i'm mainly trying to establish if this is worth opening a support ticket for...
Using IV2014 Pro SP1 update 1, Win7-64bit
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Jan 10, 2014
Whats the importance of "Shell Connector Tolerance"in the create new simulation dialog box. Any example or some kind of illustration to explain this.
C1
Inventor Professional 2013
Vault Collaboration 2013
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Sep 20, 2013
I tried editing the content (text) of a Geometrical Tolerance Box ? but the usaual don't work.
I tried double clic, Properties, right clic ....
Is there some command or icon that i did not see?
I have attach a drawing.
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Jan 30, 2008
Is it possible to set the default tolerance of a part via the API? If so ,How? Also, how would I ensure that those values are used in the drawing dimensions. I don't see any link to the values that I put into the model and the dimensions in the drawing.
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Jan 11, 2014
I have the simple (for you ) question about hole tolerance window: I want to open hole tolerance dialog box and "click" OK button (ofcourse I want to do that via VBA code). Only this, I wouldn't change tolerance type or value of tolerance.
I show you what I want on screen.
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Dec 8, 2012
You know how a magic wand allows users to set a tolerance and select accordingly.
Well this usually works well for most people's purposes but what if the object concerned has a shadow or highlight effect that would fall through the cracks and require more editing.
What I was thinking here is that it would be very useful to be able to not only set tolerances for the tool but also set a 'border' variable in pixels. Hence it would be much easier to extract that text or object with its shadows intact (and requiring less retouching work)
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Apr 13, 2011
When I export .idw in autocad .dwg, the tolerance text height of dimensions with 'Limits/Fits-Show tolerance' change, becoming the same of the dimensions text, while the tolerance text height of dimensions without 'Limits/Fits-Show tolerance' remain the same of the .idw file. Why? There's something I can do, to ensure that text height no change? See the attached pictures that show the problem.
I use Inventor 2011 with SP1.
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Jan 13, 2012
I would like to know, how to access the GDT tolerance block in Autocad, I have a requirement, that I need to take the values from Xl and paste it in the tolerance block.
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Jan 3, 2013
I have a series of complex shapes that look like solid shapes but they are separated. When I try to auto close, the lines shoot all over the place. The open ends of the lines are physically touching or at least very close.
Can you set a tolerance so that two lines touching each other connect?
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Feb 14, 2005
Any method to set all the Tolerance Types for a GeneralDimension via VBA.
The Tolerance object, accessible via the GeneralDimension object, offers methods to set Deviation, Fits, Limits & Symmetric tolerance types, but I can’t find a way to set other Tolerance types, such as Reference, Basic, Max & Min
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May 22, 2013
I've got an iFeature created that's very handy. It's basically a reamed hole with a counter bore for a purchased locating pin.
Here's the rub: Is there a way to specify a tolerance to that hole that will come through the i Feature? As in, I can draw the hole with a diameter of 0.501" within the definition of the iFeature. That's easy. However, when I do a print, I'd like to be able to just snap a leader to it that will have the "Use Part Tolerance" box checked and will reflect the correct tolerance.
As an aside, one of the reasons I want to do this is because I use Hole Tables a lot. In a hole table, I can manually go in and change the call out for the hole to show the correct tolerance, but in order to keep the grouping together, I have to do EVERY hole individually.
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Jul 28, 2010
All the values I put in to set my tolerance are being rounded to three decimal places even though the value is four place and I am setting the dimension precision to four place.
For Example: I have a hole of diameter 2.0466. It is to have a tolerance of +.0005/-.0000. When tolerance.setToDeviation is called, the .0005 is strangely forced to .001 and is set as this in the part file. The precision value had already been set to 4 at this point.
I am using the following code in Inventor 2010:
'Create hole feature
Call oCompDef.Features.HoleFeatures.AddDrilledByThroughAllExtent(oLinearPlacementDef, dDiameter, kExtentDirection)
'Get hole feature just created
Dim oHole As HoleFeature
Set oHole = oCompDef.Features.HoleFeatures.Item(oCompDef.Features.HoleFeatures.Count) ' need most recent index
[code]...
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