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For dvipng, the -D option increases the dpi of the image but also increases the image size, and the -Q option improves antialiasing but doesn't do enough. Is there a way to increase the image resolution and quality without increasing image size?
Started by Heinrich Schmetterling on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The external program will probably do.
I would suggest that you use -D and -Q , and then post-process the generated image using imagemagick's mogrify or something similar to scale the image back.
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I am developing an ASP.NET 3.5 web application in which I am allowing my users to upload either jpeg,gif,bmp or png images. If the uploaded image dimensions are greater then 103 x 32 the I want to resize the uploaded image to 103 x 32. I have read some...
Started by Kumar on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
It supports rotation, and also sets the imageI've successfully done this by creating a bitmap of the image and then resizing the bitmap...I'm, I needed to cut the....
This is the code I use.
That this was the the way to get highest quality.
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Hi, I need to resize an image, but the image quality cannot be affected by this. (C#)
Started by public static on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
As rcar says, you can't without losing some quality, the best you can do in c#, 0, newWidth, newHeight)); }
You can't resize an image without losing some quality, simply because quality.....
Some image quality.
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Hi, thanks for taking time to read my question.
I am working on PIL and need to know if the image quality can be adjusted while resizing or thumbnailing an image. From what I have known is the default quality is set to 85. Can this parameter be tweaked...
Started by bigmac on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The....
Use PIL's resize method manually:
image = image.resize(x, y, Image.ANTIALIAS)
Followed by the save method
quality_val = 90 image.save(filename, 'JPEG', quality=quality_val)
Take a look at the source" quality level.
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I want to scale an image in C# with quality level as good as Photoshop does. Is there any C# image processing library available to do this thing?
Started by Ramesh Soni on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
/// </exception> public static void SaveJpeg(string path, Image image, int quality)) { //....
Result; } /// <summary> /// Saves an image as a jpeg image, with the given quality /// < quality.
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I have a watermark script I am working on, the results are good on PNG and on JPG images however a gif image, not so good. I am using PHP and GD
Below you can see the difference in quality of the watermark.
Anyone know how to improve this?
For the gif...
Started by jasondavis on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I have never tried this, but it might be worth... .
Therefore, the colors of your watermark image have that the image your inserting uses colors that isn't available in the target image.
GIF only supports a color palette of 256 colors.
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I'm looking for ways to determine the quality of a photography (jpg). The first thing that came into my mind was to compare the file-size to the amount of pixel stored within. Are there any other ways, for example to check the amount of noise in a jpg...
Started by Matthias on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Reading the number of pixels in the image can tell you the " megapixel " size(#pixels/1 ), which can be a crude form of programatic quality check, but that wont tell you if the photo is properly how to determine the quality of the....
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Greetings, I am trying to find an easy way to manipulate an image so that I can decrease the quality of it from 8bit to 3bit.
What would be the easiest way to achieve this? Cheers
Started by Kipac on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
UPDATED: Due to a mistake....
If the original image is stored in a matrix I, let the low-res image J = I/(255/7)).
If you have access to Fixed-Point Toolbox instead, you by 255/7 (i.e .
By shifting to right any value of any pixel in image.
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For a image-upload tool I want to detect the (subjective) quality of an image automatically, resulting in a rating of the quality.
I have the following idea to realize this heuristically:
Obviously incorporate the resolution into the rating. Compress ...
Started by pi on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
And if you want to delve....
The method you mentioned and without them).
Assesing the image (the same goes for sound or video) quality is not an easy task giving a brief introduction to the subject of image quality evaluation .
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Most projectors I have available display fine at 1024x768, except that resolution is very low. If I up the resolution to 1280x1024 the image is still displayed, however the text quality drops.
Is there any solution to having a high resolution on a projector...
Started by Robert MacLean on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at serverfault):
The image is simply down-scaled by the projector, leaving the resolution higher than....
But an external scaler of good quality might cost you what into less space when it's just fixed pixels.
image, depending on how it is doing this.
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