[imagemagick] Convert Jpeg, Gif to Png

Topic:

PHP Libraries and Frameworks

2. WeDgEMasTeR wrote: 18/04/2006 at 17:42

[ImageMagick] Convert jpeg, gif to png

1. 
   Good morning
2. I found this piece of code in the php sources:
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5. johweb wrote: 18/04/2006 at 17h50

1. 
   Did you test before asking… ? ^^
3. WeDgEMasTeR wrote: 18/04/2006 at 18:07

1. 
   no…

2. I confess that I am lazy to create a test page :p
3. Well, I’ll try to do that, then.
5. johweb wrote: 18/04/2006 at 18:14pm

1. 
   Sent by WeDgEMasTeR

2. Well, I’ll try to do that, then.
3. I think it’s a good idea ^^
5. WeDgEMasTeR wrote: 18/04/2006 at 18:45

1. 
   I can’t test…
2. I wrote this down:
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5. Yogui wrote: 18/04/2006 at 22:45 hours

1. 
   Hi
2. Your function seems to perform a silly filename change, not a recording per se. This is a tricky technique because you will have a file with a .png extension but the MIME type of the file will still be JPEG, in reality.
3. I recommend you use the GD library. This is done in a maximum of 6 lines of code.
5. WeDgEMasTeR wrote: 18/04/2006 at 23h27

1. 
   Yes, I have the impression that it doesn’t convert but renames in a way.
2. I’ve been looking around with the GD library a little bit, but I can’t quite make it out.

   I’ll need an example.

3. Because in their function they always wait in parameter a file,

   but I don’t think that putting image.jpg works, it looks more like you have to make a $file = fopen(image.jpg);

4. I’m really struggling, and I can’t find any php script that does this conversion, based on…
5. hard-boiled
7. Yogui wrote: 18/04/2006 at 23:57 hours

1. 
   You have to do something like this (simplified script, no security tests) :
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4. WeDgEMasTeR wrote: 19/04/2006 at 00:30 am

1. 
   Okay, I understand a little better.
2. I just made a small correction:
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5. Yogui wrote: 19/04/2006 at 00:45am

2. WeDgEMasTeR wrote: 19/04/2006 at 11:36 am

1. 
   But can I just use your code, to convert to PNG ?
2. My members are uploading, and I want it to save their image on PNG.
3. So if the form is well filled, that it is indeed an image that he uploads.

   then I convert the image and insert the data into the DB.

4. That’s basically enough?