On 1/27/17, Ray_Net <[email protected]> wrote:
> EE wrote on 27-01-17 21:46:
>> Pete wrote:
>>>> Well, of course. You've reduced the quality by orders of magnitude.
>>>
>>> I think that what the OP is saying is that SM does a much better job of
>>> resizing the image than IrfanView, and he wants to know how (or what
>>> software to use) to get a better quality smaller image.
>>>
>>> Peter
>>>
>> If it is a jpeg file, save it with 100% instead of using the default.
>> You lose less data that way.
>>
> It was saved with 100% ....

Which doesn't get you any compression.  Can you try this:

open original image in irfanview
<ctrl>R (Image / Resize/Resample)
select radio button for Set new size
set Width: 79
select radio button for Units: pixels
Set check mark for Preserve aspect ratio
Clear check mark for Apply sharpen after Resample, Adjust DPI based on new sizes
select Size method: radio button Resample (better quality), use Filter
select Lanczos (slowest) from drop-down menu
Clear check marks for Use fast Resample filter for image shrinking,
Try to improve gamma for Resample
OK

File / Save as
Save as type: JPG - JPG/JPEG Format
Set check mark for Show options dialog

1st try:
clear all check marks on JPEG/GIF save options window except for
- Try to save with original JPG quality
Save

2nd try:
clear check mark for Try to save with original JPG quality
set Save quality slider to 75
Save


What I got for a 2MB file with an image quality 96:
- Save with original quality results in 5KB file
- Save with quality: 75 results in 2KB file

Regards,
Lee
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