Using images from Wikimedia Commons to test FilmLab


#1

Hi all,

I just tried to use the latest update of FilmLab (on an iPhone SE) with a negative image from Wikimedia Commons and it worked pretty well.
Here is a link to the image on Wikimedia Commons: https://upload.wikimedia.org/wikipedia/commons/e/e7/Big_Ben_Negative.jpg

here is the result:
https://drive.google.com/open?id=0Bw7WeAh30rD2NXRCYWpuTWRFOHM

Here is a link to a PDF that shows the “before” and “after” image
https://drive.google.com/open?id=0Bw7WeAh30rD2TFhRVG9OYmNnbms

It was a little finicky (being the beta and all), but I helped it along by putting a white border around the image as shown in the file. I had to try it a number of times before it finally worked, but I did get it.

  • Marc

#2

Here’s a color test using this image from Wikimedia commons (the original image is of all three shown, my use of FilmLab is shown in the PDF:

https://upload.wikimedia.org/wikipedia/commons/0/0c/Negative_Positive-Picture.jpg

Here are the results:
https://drive.google.com/open?id=0Bw7WeAh30rD2VkMzN1hQSWdablE
https://drive.google.com/open?id=0Bw7WeAh30rD2QVJEY0EwSk1Ybk0

Here is the PDF so you can try it yourself.:
https://drive.google.com/open?id=0Bw7WeAh30rD2TDhZSWV2ajNCclk


#3

To be clear, both of these tests were done by me pointing my camera at my laptop’s monitor


#4

Yes, FilmLab does a reasonable job when pointed at a negative image on the laptop screen.


#5

Cool, it looks like someone else tried it as well!
Abe asked me to report on it, but I can only report on how well it works in general not how easy or hard it is compared to a light table. Have you done both and is one easier/more reliable than the other?


#6

My best results are using the iPhone camera app, with the 2x lens on iPhone 7 Plus. Then use the flower icon, pick the shot from Moments, and let FilmLab process the image.

Pointing FilmLab at a negative image on screen is an interesting test, but I think the real use of this app is to point it at a negative strip.


#7

Did not work for me with negative image filling screen on an iphone 4 and using the app on an iphone 6 with ios 10.3.3. The captured image was not reversed. What I got was a quite blue negative image!


#8


#9

I’m still struggling. I can’t get an image to turn to positive whether I scan with camera or import a pre scanned negative from saved images. Using the camera I do get a view to positive but when I touch screen to capture the capture saves as the negative. There is some attempt to trim the frames but isolation of s single frame hadn’t occurred yet.

I did get close with a colour negative via import, Mono negatives however won’t convert. I also tried this Big Ben negative without success.


#10

Did you try it off of the original or off of the PDF I linked? I only got Big Ben to work with the white frame I put around it.


#11

I’m sure it works better with the light table, I just don’t have one yet and wanted to try it out right away!


#12

From images in iPhone photos.

Imported and opened in the app


#13

Great idea, using public domain images to test negative conversion! I’ll try some of these examples myself and fix bugs as necessary to make them work right.

@Gillman, thanks for sharing that image! Having a source image like that is really helpful, because I can use it for testing and confirm that the bugs you’re seeing in the output have been fixed.


#14

No worries. One more then. By the way I developed these at home so can’t be sure my chemistry was perfect so may be casts.