Hot answers tagged jpg
12
In short, Facebook is converting your image to the JPEG/JPG format (Join Photographic Experts Group). There seems to be no current way to upload images to use as a profile picture or to your photo album which Facebook will not convert to JPEG.
...a commonly used method of lossy compression for digital photography
(image). The degree of compression can ...
7
Why low quality JPG saved as high quality in Photoshop increases the file size?
If you have a low quality JPEG which you open and re–save with 100% quality (or 0% compression) in any image editing software, the output will be bigger in size than the source. In order to understand this, it is good to take a crash course on JPEG.
JPEG compression isn't ...
7
This is an outdated piece of advice related to using images in older layout programs that were not Photoshop-aware. It has no relevance to Save for Web. A jpeg is a flat file, and Photoshop takes care of the flattening (and conversion to sRGB for web use) automatically.
In general, practice non-destructive editing: never flatten a PSD, never change original ...
4
What you're observing is not a clipping mask, per se. Jpeg has no transparency and no concept of clipping or masking. Jpeg does have several metadata sections, and many programs will happily store extra information in there.
Photoshop stores paths, as you've noticed, and guides. To replicate this, create a new file and add some paths and guides. Then ...
4
Here is an article on exactly your problem. Been having this problem as well. hope this helps!
Facebook uses a low quality jpg compression so any solid colors end up looking heavily pixelated. Solution is to add images at double the size with noise.
http://www.vancouverpov.ca/wp/social-media/tips-to-improve-facebook-cover-photo-quality/
4
When saving images as .jpeg you always lose information. The dialog basically asks you how much information you would like to lose in favor of smaller size on disk (1 = most loss, 100 = least loss). There is no way to tell what you originally selected and the only use would be to have a history of your workflow because this loss is irrecoverably applied to ...
3
File >> scripts >> Load files into stack
Browse for your 450 images, select them all, and press open. This will take a long time!
When it's finished the process go to: image >> canvas size
Change the width of the document to your desired amount.
Now align the first frame to the far left of the canvas, and the last frame to the far right.
Select all ...
3
My approach would be to use Select > Color Range:
Eyedropper a clean area of the yellow to make it the foreground color. Be sure to set the sampling to 3x3 or 5x5, not single pixel.
Choose Select > Color Range and click the "+" icon in the dialog. Work with the image until all the icon pixels are selected but none of the background (should be easy).
...
2
I'm not familiar with paint.net specifically, but if you see a sharp image in the editor and it's blurry after export then it is being blurred by the program, not compression. Compression doesn't create blur, but one of the ways that a program can improve the jpeg compression ratio of an image is to give it a slight blur. In Photoshop, for example, there is ...
2
JPG is a lossy scheme. There will always be image degradation when saving as a jpg. If you started with a jpg, then save to a jpg things get even worse, fast.
If a jpg set on maximum quality is not yielding the results you wish, then chances are there is no solution other than to live with the quality you are getting if the image must be a jpg.
You might ...
2
Export equation from word to pdf File – Save as – Pdf
Indesign, Create new document, place pdf File – Place (cmd+D)
Export .eps, File – Export – eps
Place .eps to corel (i'm cheked in illustrator - equation in vector)
Microsoft word
Adobe illustrator
2
Various possible reasons:
you are re-saving the images at a lower resolution. fewer pixels = less data = smaller file size
your camera is likely saving JPGs with minimal compression. Your desktop software is using a higher level of JPG compression.
Even if your software is using the SAME compression as your camera, each time you re-save a JPG, you lose ...
2
Here on Adobe forums is a same problem with successful results: http://forums.adobe.com/message/4271028
Maybe the APP14 tag is not correct? Theres more to APP14 tags than it just being there. On JPEG tags: http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html#Adobe
JPEG Adobe Tags
The "Adobe" APP14 segment stores image encoding information for ...
1
Figured out how to extract them using Photoshop CS5. Possibly works on other versions too, though I didn't test.
Open the PDF in Photoshop, choosing the image you want
Save as... > JPEG
Use all the default values when saving, don't move any sliders
The saved JPEG will be a pixel-perfect copy, with correct colors
This seems to be the one instance where ...
1
The answer is obviously compression.
An typical camera image is 3 long strings of numbers (between 0 and 255), one string for Red, one string for Green, and one string for Blue. The number is the brightness value for an individual pixel. The length of each string is the pixel width of the image mulitplied by the pixel height of the image. A byte is a unit ...
1
171x100 pixels gives you an image that is slightly more than 1/2 inch wide at 300 pixels per inch. I'm taking a guess that this is not the size you specified in the Illustrator document, which is why your output was pixellated, and when you worked in inches inside Photoshop you then got a correct result in Illustrator.
A 2 inch image at 300 ppi is 600 ...
1
Assuming that no compression has been applied to the file, there are 307,200 pixels, which is a 0.3MP. Handy look up table
If each pixel contains 24 bits of information for Red green and blue, then
307,200 * 24 = 7,372,800 bits of information
Divide by the 8 bits to become a byte value
7,372,800 / 8 = 921,600 bytes (Or 0.9 Mb)
I hope my Saturday night ...
1
JPEG saves brightness (luminance) and color (chrominance) of the image in separate channels.
And JPEG has an option (used in your case) to save chrominance at half of resolution, since human eye is generally much less sensitive to changes of color hue than brightness.
So what you're seeing is "4:2:2" type of JPEG. To get perfectly sharp edges you need ...
1
Have you tried flattening the image then going to save > save for web? 'Save for web' gives you more control over the output size plus lets you see the quality change with each setting.
There are online services such as http://www.smushit.com/ysmush.it/ , which might help squeeze some kb's out of your images.
1
The free image editor Greenfish Icon Editor Pro has this functionality out of the box. It is a function called "Remove Matte", where you just specify the color component you want to be replaced with transparency. In your case white.
This also supports partial transparency, so you will get smooth edge towards the transparent parts. This is not supported in ...
1
If this image is representative of your other images, with large, flat areas of color, then a simple color quantize can give a good result. In the sample images there are only three intended colors: two shades of grey, and yellow.
Open the image in Photoshop, and choose Image > Mode > Indexed Color
Set:
Colors: 3
Forced: None
Transparency: Unchecked
...
1
Choose the color(to be the border) you want in your color palette.
Image -> Canvas Size (increase this by the thickness of the border you want).
or
"Select All".
Edit -> Stroke -> then set the color, line width, inside.
or
Select the layer of the image (if it's multiple layers, select them and create a smart object).
Layer -> Layer Style -> ...
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