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I am trying to take the imageData of image in this where w= width of image and h = height of image
for (int i = x; i < x+h; i++) //height of frame pixels { for (int j = y; j < y+w; j++)//width of frame pixels { int pos = i * w * Channels + j; //...
Started by konidela on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
From the code you've posted your problem lies in your position variable, you'd want something like int pos = i*w*Channels + j*Channels , then you can access the... .
See good explanation here on multiple methods for accessing pixels in an IplImage in OpenCV .
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I would like to create a image uploading service (yes, i am aware of imageshack, photobucket, flickr...etc) :)
I have seen only imageshack show the directory names ("img294", "1646") of where the image is located, in the same way - i would like to do ...
Started by Abs on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Be easy to prevent duplicate image names conflicting on your server as well, you can gather as many as well to aid in a method of duplicate image detection, which could save you disk space as well.
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I have a site that creates images for some bit of content after the content is created. I'm trying to figure out what to do in between the time the content is created and the image is created. My thought is that I might be able to set a custom image to...
Started by Tracy Hurley on
, 6 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
<P> <!-- First" type="application/mpeg"> <!-- Else, try the GIF image --> <OBJECT data="TheEarth.gif" type="image/gif"> <!-- Else ....
Use the <object> tag in HTML with a fallback to the default image.
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Ask your Facebook Friends
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What is the difference between "image/png" and "image/x-png"?
Started by Aaron Bush on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
New Content-Transfer- are nonstandard
So my guess is "image/x-png" is probably leftover from the days when png was pretty new, and as such, not standardized....
That image/x-png would have been PNG before the MIME type was standardized.
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I wrote a simple javascript image rotator which picks a random image on each page load. The issue is that if i use a default image, that default image will show up for a second before the javascript loads and replaces it. Obviously if someone has javascript...
Started by Galen on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You can then install an onload handler on the image and change its source to your random....
If you hide the default image as the first thing you do when the page loads, there probably won't be a chance for the users to see the image.
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I am trying to write a small php function to take an image and apply a watermark type image on top of the image and them save them as 1 image, this code runs with 0 errors but does not apply the watermark image, is there anything obvious that stants out...
Started by jasondavis on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
If it's just not saving out a final image://www.cafewebmaster.com/image-watermark-php....
Could be be wrong though.
Here's a tutorial on how to make it from a watermark using a transparent PNG image: http it's not rendering correctly.
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First of all,check out this image
Gmail uses this image to display the animated emoticon.
How can we show such animation using a png image?
Started by Rakesh Juyal on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
I leave and height that....
Set the background image of an element to the first image, then use javascript to change the image by altering the style every x milliseconds.
Www.alistapart.com/articles/sprites The answer lies within.
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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 have an object of type IMAGE which holds image. I wanted to display the image in MVC view along with other controls. The way i can think of is to temporary store image on disk and set src of img control. I am sure there would be better way of doing ...
Started by Balaji on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
You can....
In your page you to temporarily write to disk.
For instance, you have http://myapp/media.ashx?imageId=10 stream out the image.
You can write a handler to stream images out and then reference the streamer in your image tag.
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How do you detect the location of an image within a larger image? I have an unmodified copy of the image. This image is then changed to an arbitrary resolution and placed randomly within a much larger image which is of an arbitrary size. No other transformations...
Started by The Rook on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
There is a quick and dirty solution, and that's simply sliding a window over the target image the image is there and that's the location; if the score is below the threshold, then the image original image multiple times ....
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