[osCmax v2.5x] Image Manager enhancement. Now you can generate only missing images.

[Luxoria]

Hi everybody, I made a quick mod to the Image Manager that adds an extra option to generate only missing images. Currently if you upload new MOPIC images you would either have to the thumb them manually in a program like photoshop or regenerate all your images server wide. (using the image regen option when Browsing products does not regen MOPICS)

The mod scans the DYNAMIC_MOPICS_BIGIMAGES_DIR (images_big/) directory and looks to see if there are corresponding image files in DYNAMIC_MOPICS_PRODUCTS_DIR and DYNAMIC_MOPICS_THUMBS_DIR. If either one of those images are missing the mod regenerates the whole images set.

There are only two modified files:

admin/images_regen.php
admin/includes/languages/english/images_regen.php

and one new file

admin/includes/languages/english/images/buttons/button_regenerate_missing.gif

Attached in a ZIP are those three files and a step by step to add the mod manually.

For me it works great! Let me know if you have any questions.

To Do: Figure out how to use the button template and make a nice looking button.

To Do: Add image compression control. Some images look really bad at the default 75 JPG compression and it would be nice to have the ability to use 99 JPG compression for select images.


*edit* forgot to remove a debug echo. found around line 840: remove 'echo 'go! <br>';'

[ridexbuilder]

Thanks for sharing.
75% is usually fine for thumbnails but it does depend on image type. It's pretty easy to change though and you'd be hard pressed to notice any differences in quality with compression beyond 85%. Given the resultant file size, I recommend this as a maximum but solely up to you and how slow you're prepared your site to be!
Relevant line of code:

 $phpThumb->setParameter('q', 80);  //maintain high quality for product image 
  

[pgmarshall]

I will merge this into the core ... thank you for giving your code back to the community.

I have a button generator that can create the buttons for me ... There is a .psd file in the admin/images folder if you ever need it ...

Perhaps we could move the image compression setting into the Mopics Settings?

Regards,

[blackhawk]

Nice Job Luxoria! That is a great because I just spend all week converting 650 images into product size and thumbnail size. Won't be the last time for me but this module will definitely help!!!

[ridexbuilder]

Perhaps we could move the image compression setting into the Mopics Settings?

Given the widespread deplorable use of images (size, proportions), I deliberately didn't make it too simple to change. In general, people have a hard enough job only putting in one dimension, uploading a sensible sized image and using a 'quality' source image. This is in addition to poor (or no) image naming convention.
Give 'em enough rope... (in the words of The Clash)



[Yesterday, I ran through a manual file size compare and consolidation of approx. 2,000 images, due to exactly the above reasons]

[ridexbuilder]

To be really pedantic, any source image that is JPG (or PNG?) has already lost any inherent quality, being lossy file formats. For many, it's a case of never mind the quality, feel the width (quantity) - witness rising megapixel counts in consumer cameras/phones. LZW compressed TIF, or better FIF (fractals) would be far better for photographic images, if more widespread use was supported in browsers/programs.

[Luxoria]

Awesome, I am glad to have contributed. There really has only been about three images out of a few hundred that I had to change the JPG compression to 99, it was night shot of a red glowing product against a white wall. Right now my compression is set manually in phpthumb.class to 90. A bit high, but I have difficult products when it comes to photography.

@blackhawk, I am working on better affiliate tracking and reporting if you want the beta code. I even installed the ability to allow affiliates to upload banners. I am posting this here in because you blocked your PMs.

edit* yeah , I saw the PSD file for the buttons. I just could not figure out how to make the button wider, so I made a quicker so I can move on to my next project.

[ridexbuilder]

... it was night shot of a red glowing product against a white wall...

A recipe for artefacts

[pgmarshall]

@bh - The image functionality has been in the source for a while! Don't waste any more time resampling your images! ... Luxoria's mod to the module helps you find the ones you are missing which is excellent as it will keep the server overhead down!

@Luxoria - I am interested in the affiliates stuff you are working on as it is an area of v2.5 which needs some work. Not many people have used the affiliate stuff in the past so it probably all needs updating and fixing to work properly - I have done a load of tidying up (eg. rollover help buttons, etc.) but I have not spent any time fixing the core functionality yet ... r868 - oscmax2 - Project Hosting on Google Code

Regards,

[blackhawk]

and anyway I can help or test with the affiliate functionality, let me know. I am in desperate need for a stable solution but happy.