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plurals

POUpload image without losing quality
primarykey
Id
4034285
data
AcceptedAnswerId
4034331
AnswerCount
3
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2010-10-27T14:21:41.337
FavoriteCount
0
LastActivityDate
2017-01-31T15:03:32.827
LastEditDate
LastEditorUserId
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OwnerUserId
352959
ParentId
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PostTypeId
1
Score
2
ViewCount
3235
LastEditorDisplayName
text
Body
<p>I use this class to upload and resize images. The problem is that images have bad quality! I need to upload images without losing quality at all!</p> <pre><code>class SimpleImage { var $image; var $image_type; function load($filename) { $image_info = getimagesize($filename); $this->image_type = $image_info[2]; if( $this->image_type == IMAGETYPE_JPEG ) { $this->image = imagecreatefromjpeg($filename); } elseif( $this->image_type == IMAGETYPE_GIF ) { $this->image = imagecreatefromgif($filename); } elseif( $this->image_type == IMAGETYPE_PNG ) { $this->image = imagecreatefrompng($filename); } } function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) { if( $image_type == IMAGETYPE_JPEG ) { imagejpeg($this->image,$filename,$compression); } elseif( $image_type == IMAGETYPE_GIF ) { imagegif($this->image,$filename); } elseif( $image_type == IMAGETYPE_PNG ) { imagepng($this->image,$filename); } if( $permissions != null) { chmod($filename,$permissions); } } function output($image_type=IMAGETYPE_JPEG) { if( $image_type == IMAGETYPE_JPEG ) { imagejpeg($this->image); } elseif( $image_type == IMAGETYPE_GIF ) { imagegif($this->image); } elseif( $image_type == IMAGETYPE_PNG ) { imagepng($this->image); } } function getWidth() { return imagesx($this->image); } function getHeight() { return imagesy($this->image); } function resizeToHeight($height) { $ratio = $height / $this->getHeight(); $width = $this->getWidth() * $ratio; $this->resize($width,$height); } function resizeToWidth($width) { $ratio = $width / $this->getWidth(); $height = $this->getheight() * $ratio; $this->resize($width,$height); } function scale($scale) { $width = $this->getWidth() * $scale/100; $height = $this->getheight() * $scale/100; $this->resize($width,$height); } function resize($width,$height) { $new_image = imagecreatetruecolor($width, $height); imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight()); $this->image = $new_image; } } </code></pre> <p>Can anyone please help?</p>
Tags
<php>
Title
Upload image without losing quality
singulars
PostAcceptedAnswerId
1. PO
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  PTAnswer
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1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USKing Julien
plurals
PostLinksPostIdRelatedPostId
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PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
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1. VO
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  POUpload image without losing quality
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  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
2. VO
  singulars
  PostPostId
  POUpload image without losing quality
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  This table or related slice is empty.
  VoteTypeVoteTypeId
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CommentsPostId
1. COThe quality problem has been fixed but there is one more problem. When I upload transparent png images, the transparent parts got black. How can be this fixed?
  singulars
  PostPostId
  POUpload image without losing quality
  UserUserId
  USKing Julien
2. COsee e.g. here: http://stackoverflow.com/questions/313070/png-transparency-with-php
  singulars
  PostPostId
  POUpload image without losing quality
  UserUserId
  USmercator

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